Stainless IBCs are the only container we sell that nobody should ever recycle.
A 304 or 316L stainless bin, looked after, will outlive the person who bought it. We buy them, we polish them, we re-passivate them, and we sell them to people who intend to keep them for twenty years.
Quote: Stainless & Steel IBCs
Buy once, clean forever, never think about resin compatibility again.
A stainless bin solves the two problems that follow poly totes around: chemical compatibility and cleaning validation. Stainless does not absorb odour, does not craze, does not stress-whiten and does not care what you put in it within sensible pH limits. You can steam it, you can CIP it, you can take a swab and prove it is clean.
The catch is capital cost, which is why the second-hand market matters. A reconditioned 316L bin at a fraction of new price, re-passivated and pressure tested, is one of the best value propositions in liquid handling — and the embodied carbon is already paid.
- Full mechanical polish, interior and exterior
- Citric or nitric re-passivation with a ferroxyl test
- Pressure and vacuum tested where the design allows
- Gaskets, valves and sight glasses replaced as standard
- Weld seams dye-penetrant checked on request
Typical stainless inventory.
| Type | Alloy | Capacity | Closure | Typical service |
|---|---|---|---|---|
| Square bin, caged | 304 | 350 gal / 1,325 L | Bolted manway | Food ingredients, oils |
| Square bin, caged | 316L | 350 gal / 1,325 L | Bolted manway | Acids, pharma intermediates |
| Square bin, insulated | 304 | 400 gal / 1,514 L | Clamp lid | Temperature-held product |
| Cylindrical bin | 316L | 500 gal / 1,893 L | Tri-clamp | Sanitary and CIP service |
| Cylindrical bin | 304 | 550 gal / 2,082 L | Tri-clamp | Brewing, distilling, dairy |
| Carbon steel bin, lined | Carbon + epoxy | 350 gal / 1,325 L | Bolted manway | Non-sanitary industrial |
| Pressure-rated bin | 316L | 350 gal / 1,325 L | Bolted, 15 psi | Pressure transfer, inerting |
Stainless inventory turns slowly and is highly variable. Ask for a current list rather than assuming anything above is on the floor today.
What we do to a stainless bin before it ships.
Teardown
Valves, sight glasses, gaskets, manway seals and legs all come off. Nothing is reused that costs less than the labour to clean it.
Degrease and caustic strip
Hot caustic circulation to remove product film, followed by a full potable rinse and a conductivity check.
Mechanical polish
Interior polished back toward the original finish. We will quote 2B, No. 4 or electropolish-equivalent depending on what the shell will take.
Re-passivation
Citric or nitric passivation to restore the chromium oxide layer, then a ferroxyl or copper sulphate test to prove free iron is gone.
Weld and shell inspection
Visual on every seam, dye penetrant where you ask for it, wall thickness spot-checked by ultrasonic gauge.
Pressure or leak test
Hydrostatic or pneumatic depending on the design rating, with a signed test record.
Rebuild and tag
New gaskets, new or rebuilt valves, new sight glass, legs trued, and a stamped reconditioning tag with the date and the tests performed.
“The bin we bought from them in 2016 has been through eleven product changeovers and two CIP validations. It will outlast our building.”
Where a reconditioned stainless bin is the obvious buy.
- Any programme with cleaning validation and swab testing
- Aggressive chemistry that would craze or swell HDPE
- Hot fill, steam cleaning or temperature-held product
- Repeated changeovers between incompatible products
- Pressure or vacuum transfer service
- Long-life internal logistics where the container never leaves site
- Distilling, brewing, dairy and other sanitary duty
- Anywhere a poly tote has already failed you once
Baseline specifications for everything we handle.
| Container | Capacity | Footprint | Height | Tare | Gross at SG 1.0 | Per 53' trailer |
|---|---|---|---|---|---|---|
| Caged composite IBC | 275 gal / 1,040 L | 40 × 48 in | 46 in | 127 lb | 2,420 lb | 20 floor / 40 stacked |
| Caged composite IBC, XL | 275 gal / 1,040 L | 40 × 48 in | 53 in | 132 lb | 2,425 lb | 20 / 40 |
| Caged composite IBC | 330 gal / 1,250 L | 40 × 48 in | 53 in | 145 lb | 2,900 lb | 20 / 40 |
| Caged composite IBC | 350 gal / 1,325 L | 48 × 48 in | 52 in | 170 lb | 3,090 lb | 18 / 36 |
| Stainless bin, 304 | 350 gal / 1,325 L | 48 × 42 in | 55 in | 420 lb | 3,340 lb | 18 / — |
| Stainless bin, 316L | 500 gal / 1,893 L | 52 in dia. | 74 in | 580 lb | 4,750 lb | 14 / — |
| Poly drum, closed head | 55 gal / 208 L | 23 in dia. | 34.5 in | 22 lb | 480 lb | 80 on pallets |
| Steel drum, lined | 55 gal / 208 L | 22.5 in dia. | 33.5 in | 38 lb | 496 lb | 80 on pallets |
| Salvage overpack | 95 gal / 360 L | 28 in dia. | 40 in | 35 lb | 827 lb | 40 on pallets |
Figures are nominal and vary a little by moulder. Always multiply net volume by the actual specific gravity of your cargo before checking a forklift or racking rating.
The grading system, in one table.
| Grade | Prior cargo | Wash route | Clean index | Price index | Drops a grade if |
|---|---|---|---|---|---|
| A — Food | One, food only, documented | Route 3 potable triple rinse | 100 | 100 | More than one cargo, missing declaration, film on scope, odour fail |
| A — Rebottled | None — new bottle | New, unused | 98 | 86 | Cage fails node inspection or leak test |
| A — Washed | Non-hazardous industrial | Route 2 hot caustic | 92 | 74 | Ghosting remains, or cargo history unverifiable |
| B — Rinsed | Mixed industrial | Route 1 rinse | 72 | 52 | Structural repair, or odour a buyer would notice |
| C — Non-potable | Heavier residue, repaired | Route 1 rinse | 48 | 34 | Any crazing, any persistent bulge, failed leak test |
| D — Reclaim | Failed test or structure | Not resold | 16 | 9 | Not applicable — this is the floor |
Price index is relative to Grade A food at 100, not a quote. The absolute level moves with resin, scrap steel, freight rates and the agricultural season.
What the stock actually looks like.
Unretouched frames from Livonia and from the road. Every unit you can see in them went through the same twenty-two point intake as the one we would send you.
What arrives with the containers.
None of this is optional or chargeable. It is the difference between a reclaimed container and an anonymous second-hand one.
- A prior-contents sheet naming the product, the fill date and the company that filled it
- Four photographs of the actual unit plus an image of the cage stamp
- The grade assigned, and the published criteria that grade commits us to
- A wash record where the unit went through Route 2, 3 or 4, with temperature, dwell, rinse count and final rinse conductivity
- A leak test record for every Grade A and Grade B unit: method, pressure, hold time and measured decay
- The UN plate photograph and periodic test dates where the unit is marked
- A component list naming gasket material, valve type and cap type
- The cage passport ID, so the whole service history can be reissued later
- An allergen flag where a prior food cargo included dairy, egg or tree-nut oils
- A standing take-back offer: when you are finished, we collect and pay
Cargo weight by specific gravity.
| Cargo | SG | 275 gal net | 275 gal gross | 330 gal gross | Notes |
|---|---|---|---|---|---|
| Ethanol, 190 proof | 0.81 | 1,858 lb | 1,985 lb | 2,375 lb | Flammable — conductive container required |
| Used motor oil | 0.89 | 2,042 lb | 2,169 lb | 2,595 lb | Warm before pumping in winter |
| Canola oil, refined | 0.92 | 2,110 lb | 2,237 lb | 2,678 lb | Hot wash route only |
| Water | 1.00 | 2,294 lb | 2,421 lb | 2,898 lb | The baseline for everything |
| Propylene glycol | 1.04 | 2,386 lb | 2,513 lb | 3,008 lb | Commonest tote cargo in the Midwest |
| Urea solution 32.5% | 1.09 | 2,500 lb | 2,627 lb | 3,145 lb | Freezes at 12 °F |
| Hydrochloric acid 35% | 1.18 | 2,707 lb | 2,834 lb | 3,393 lb | Viton gaskets, never EPDM |
| Liquid cane sugar | 1.33 | 3,051 lb | 3,178 lb | 3,804 lb | Near the density limit for a 330 |
| Ferric chloride 40% | 1.42 | 3,258 lb | 3,385 lb | 4,052 lb | Stains HDPE permanently |
| Caustic soda 50% | 1.53 | 3,510 lb | 3,637 lb | 4,355 lb | 275 only; check the forklift rating |
| Sulphuric acid 93% | 1.83 | 4,198 lb | 4,325 lb | 5,208 lb | Steel or stainless service, not poly |
Gross figures include tare of 127 lb for a 275 and 145 lb for a 330 on steel pallets. The maximum net mass on the UN plate is a separate and binding limit.
Buying questions, answered at length.
What is the minimum order, really?
One unit, on every product line. There is no hidden minimum and no 'pallet quantity only' rule.
Freight is what makes single units expensive. Inside our six weekly lanes we will usually fold one tote into a scheduled route rather than quoting LTL, which is why a single-unit order to Toledo costs a fraction of a single-unit order to Dallas.
Can I see the exact units before paying?
Yes, and it is standard rather than a concession. Four photographs per unit plus the cage stamp, tagged to a bay number, emailed before payment.
This started as a way of ending a recurring argument about Grade B expectations. It turned into our most effective quality control, because an inspector who knows the photograph goes to the customer grades more conservatively.
How do I know the grade is honest?
Because the disqualifiers are published. A Grade A food unit drops to Grade A washed if there is more than one prior cargo, if the declaration is missing, if third-rinse conductivity is out of tolerance, if the scope shows film, or if the odour check fails.
Ask any supplier what would disqualify a unit from the grade they just sold you. A supplier who cannot answer immediately does not have a grading system.
What happens if a unit is not as described?
We replace it, re-grade and refund the difference, or collect it and refund in full — your choice, not ours.
We have refunded four units in the last three years. All four were our grading error, and all four customers still buy from us.
Do you substitute units without telling me?
No. Container reconditioning depends on inspection outcomes we cannot fully predict, so units occasionally fail during processing.
When that happens we tell you immediately and offer the nearest available alternative, rather than quietly shipping something different and hoping the photographs were not studied.
Can I specify valve, cap and gasket?
All three, on any grade. If you name the cargo we will specify them for you rather than making you learn three buttress thread standards and six camlock types.
The most expensive eleven-dollar mistake in this industry is EPDM in aromatic service. It swells, extrudes out of the joint and fails without warning.
Eight mistakes we watch customers make, repeatedly.
None of these are stupid. All of them are expensive, and every one of them has happened to somebody competent in the last twelve months.
1. Multiplying volume by 8.34 and forgetting specific gravity
A 275-gallon tote of 50% caustic soda grosses 3,637 lb, not 2,420. Forklift capacity ratings, racking beams and warehouse floors all care about the real number. This is the single most common serious miscalculation in liquid handling.
2. Buying Grade A washed for site water
Cosmetic condition has no effect on how well a container holds water for dust suppression. Grade C costs a third as much and lasts exactly as long under that treatment. Roughly half the customers who ask for Grade A are paying for appearance they do not need.
3. Fitting a vented cap for storage
A vented cap is a dispensing device. Left on a stored container it pumps moist air in all winter, and we have opened totes in March with half a litre of condensate sitting on top of the cargo. Solid cap in storage and transit; vent at the point of use.
4. Filling to the brim before a freeze
Water expands about nine percent on freezing and an HDPE bottle will crack at the lower corner near the sump almost every time. Fill water-based cargo to 85% and store where the unit can drain.
5. Reusing the gasket
The cheapest component in the assembly and the most common source of carried-over odour and cross-contamination. Gaskets take a compression set, harden, and hold prior cargo in the elastomer.
6. Ordering twenty-two units
A 53-foot trailer holds twenty. Twenty-two pays for two trailers to move two containers. Tell us if your number is flexible and we will tell you which way to move it.
7. Forcing a buttress thread
S60×6, S70×6 and S75×6 will each start on the others and then bind. Two turns and a stop means the wrong standard, and forcing it crazes the bottle neck permanently.
8. Storing translucent bottles outdoors
UV plus freeze-thaw cycling is what finally kills HDPE. We have measured 10% wall loss on the south face of bottles after five years in the open, with the shadow pattern of the cage printed onto the plastic. Black UV-stabilised bottles outlast translucent ones by three to four times outdoors.
Threads, fittings and gaskets.
| Designation | Size | Where it appears | Mates with | Gasket |
|---|---|---|---|---|
| S60×6 | 60 mm buttress | Schütz, Werit, most European bottles | S60×6 adapters, GHT reducer | Flat EPDM or Viton |
| S70×6 | 70 mm buttress | Mauser and many North American bottles | S70×6 to 2 in camlock | Flat EPDM or Viton |
| S75×6 | 75 mm buttress | Older Schütz, some Greif | S75×6 to S60×6 reducer | Flat EPDM |
| 6 in coarse | ~150 mm | Top fill port, near universal | Vented or solid cap, bung insert | Flat gasket or liner seal |
| 2 in NPT | Tapered pipe | Valve outlets after adapter | Camlock type C or D | PTFE tape on thread |
| Camlock type C | 2 in coupler | Hose end, female | Type A or F | Internal seal ring |
| GHT 3/4 in | Garden hose | Irrigation, rain harvesting | GHT to S60×6 | Hose washer |
| Tri-clamp 2 in | Sanitary ferrule | Stainless bins | Tri-clamp ferrule | Silicone or EPDM |
Buttress threads are asymmetric and will start on an adjacent standard before binding. Two turns and a stop means it is the wrong thread — do not force it, you will craze the bottle neck.
Technical questions about the containers themselves.
Why does the outlet leak?
In order of likelihood: the dust cap is loose or missing; the flat gasket between valve body and bottle neck has taken a compression set; the butterfly valve liner has set in the open position; the bottle neck is crazed around the thread root; or the sump has failed.
The first two are cheap fixes. The last two condemn the bottle. Full diagnostic order is in our valve field guide.
Can I use a poly tote for solvent or fuel?
Not a standard one. Polyethylene has a surface resistivity around 10^16 ohms per square — one of the best insulators in industrial use — so flow electrification charges the liquid with nowhere for the charge to drain.
Worse, the galvanised cage around an insulating bottle is a classic isolated conductor: it accumulates charge by induction and discharges in a single energetic spark. Use a steel or stainless bin, or a purpose-made conductive IBC with a bonding lug.
How do I get the last of the product out?
Level the container first, then tilt it forward with a 50 mm block under the rear feet. The sump works because it is the lowest point, and two degrees out of level moves the lowest point to the back wall.
For viscous cargo, warm it to 100–120 °F with a thermostatic jacket — never above about 140 °F on HDPE. For high-value product, a dip tube to the sump with a diaphragm pump recovers more than gravity does.
What does the UN marking mean?
Taking 31HA1/Y/03 25/USA/M5678/1040/127 as an example: 31HA1 is the design type (composite IBC for liquids, plastic inner, rigid steel outer, with structural equipment); Y is the packing group capability (II and III); 03 25 is March 2025; USA is the approving authority; M5678 is the manufacturer code; 1040 is the stacking test load in kg; 127 is the tare.
A separate stamped date records the last periodic test, and that is the one that determines whether the container may be offered for regulated transport today.
Should I buy translucent or black bottles?
Translucent indoors, black outdoors, every time. Translucent gives you level visibility for free; black gives you three to four times the outdoor life.
We measured twelve translucent units pulled after four to six years outdoors: south walls 0.21 mm thinner than north walls on the same unit, chalking on every south and west face, and coupons that snapped like a biscuit when folded.
How do I tell how old a container is?
Three independent sources, and they do not always agree. The UN plate carries a date of manufacture for the assembly. The bottle has a moulded date wheel — a clock face with the month and a two-digit year. The cage usually has a stamped week-and-year code on the lower rail, right-hand side facing the outlet.
Bottle newer than plate means a rebottle. Plate newer than cage stamp means a recertification. We list all three separately on every unit and say why when they conflict.
The pages our own staff keep open.
Chemical compatibility, container by gasket.
| Cargo | HDPE bottle | EPDM | Viton | PTFE | Note |
|---|---|---|---|---|---|
| Water, potable | Excellent | Excellent | Excellent | Excellent | Rebottled or Grade A food only |
| Sodium hypochlorite 12.5% | Good | Fair | Good | Excellent | Vent — the cargo off-gasses and will bulge a sealed bottle |
| Caustic soda 50% | Excellent | Excellent | Good | Excellent | SG 1.53 — 275 gal only, check the forklift plate |
| Sulphuric acid 93% | Not suitable | Not suitable | Fair | Excellent | Lined steel or stainless service, never poly |
| Hydrochloric acid 35% | Good | Not suitable | Excellent | Excellent | Viton only; HCl destroys EPDM in weeks |
| Nitric acid 10% | Fair | Not suitable | Good | Excellent | Oxidiser — embrittles HDPE over months |
| Phosphoric acid 75% | Good | Fair | Good | Excellent | Common fertiliser intermediate |
| Propylene glycol | Excellent | Excellent | Excellent | Excellent | The most-handled tote cargo in the Midwest |
| Ethylene glycol | Excellent | Excellent | Excellent | Excellent | Label clearly — it is routinely confused with PG |
| Ethanol, 190 proof | Good | Fair | Excellent | Excellent | Flammable — conductive container and bonding required |
| Methanol | Good | Fair | Excellent | Excellent | Permeates slowly through HDPE; not for long storage |
| Mineral oil, white | Excellent | Not suitable | Excellent | Excellent | EPDM swells in hydrocarbons |
| Used motor oil | Excellent | Not suitable | Excellent | Excellent | Warm to 60 °F before pumping in winter |
| Diesel and heating oil | Good | Not suitable | Excellent | Excellent | Check local rules before storing fuel in an IBC |
| Vegetable and canola oil | Excellent | Good | Excellent | Excellent | Hot wash route afterwards or it polymerises |
| Urea solution 32.5% (DEF) | Excellent | Excellent | Excellent | Excellent | Freezes at 12 °F, expands, then recovers |
| Liquid fertiliser 28-0-0 | Excellent | Excellent | Excellent | Excellent | Stains the bottle; does not harm it |
| Ferric chloride 40% | Excellent | Not suitable | Excellent | Excellent | Permanent orange staining — cosmetic only |
| Hydrogen peroxide 35% | Fair | Not suitable | Good | Excellent | Vented cap mandatory; dedicated bottle, never reused |
| Acetic acid 80% | Good | Fair | Good | Excellent | Odour carries over — dedicate the unit |
| Latex paint and coatings | Excellent | Good | Excellent | Excellent | Never let it dry inside; a cured film is unremovable |
| Toluene, xylene, MEK | Not suitable | Not suitable | Good | Excellent | Aromatic solvents swell and soften HDPE |
| Isocyanates and polyols | Refused | Refused | Refused | Refused | On our published exclusion list — they cure |
| Firefighting foam concentrate | Refused | Refused | Refused | Refused | PFAS risk; we will not take it at any price |
Ratings are for ambient-temperature storage in a reclaimed container, not for pressurised or heated service. Every 20 °F above 100 °F roughly halves the service life of the rating. When the cargo is not on this list, send us the SDS and we will tell you what we would and would not put it in.
The anatomy of a caged tote, part by part.
A 275-gallon caged IBC looks like one object and is actually five, each with a different lifespan, a different failure mode and a different second-hand value. Knowing which part you are buying is most of what separates a good purchase from an expensive one.
The inner bottle
Blow-moulded HDPE, 42 lb, nominal wall around 2 mm with deliberate thickening at the corners and the sump. It carries the cargo and nothing else. It is the part that ages: UV takes the surface, freeze-thaw cycling takes the corners, aromatic solvents soften the wall, and chemical stress plus mechanical stress together produce crazing. A bottle in indoor service with a compatible cargo will outlive the person who bought it. The same bottle in a Michigan yard, translucent, filled to the brim in November, has about five years.
The steel cage
Tubular galvanised steel, 55 lb, 44 to 54 welded nodes depending on the moulder. It takes every load the bottle cannot: stacking, strapping, forklift abuse, the hydrostatic push of a full bottle against its own walls. Cages outlast bottles roughly three to one, which is why rebottling exists as a trade at all. The failure modes are cracked nodes, a diagonal pushed out of square by impact, and red rust bleeding through a breached galvanising layer at a weld.
The base
Steel, composite, hybrid or timber, 22 to 44 lb. It decides how the unit can be handled and whether it can leave the country. Four-way entry and pallet-jack access are not universal, and a timber base without an ISPM 15 heat-treatment stamp will be stopped at a border. The welds attaching the cage to a steel base are a specific inspection point because a failed base weld makes the whole unit unstable under load with no other visible symptom.
The closures
A 6-inch top cap, a 2-inch discharge valve, the adapter stack at the outlet, and the gaskets. Together they weigh a few pounds, cost a fraction of the assembly, and cause most of the complaints: weeping valves, carried-over odour, cross-threaded adapters, vented caps left on in storage. We replace the valve, cap and gasket on every Grade A unit for exactly this reason — it is the cheapest possible insurance against the most common possible problem.
The markings
The UN plate, the cage stamp, the moulder's date wheel inside the bottle skirt. These are the unit's identity. The plate decides whether it can carry a regulated cargo and until when; the cage stamp is how we can reissue a seven-year service history years after the unit left the yard. A unit with an illegible plate is not scrap — it is a perfectly good container that has lost its licence, and it is priced accordingly.
If you only remember one thing: you are buying a bottle with a date on it, bolted into a cage that will outlive it, with hardware that should be new. Price the bottle, inspect the cage, insist on the hardware.
Valves, caps and how each one fails.
| Component | Typical material | Service | How it fails | Our policy |
|---|---|---|---|---|
| Butterfly valve, 2 in | HDPE body, EPDM seat | General liquid | Seat takes a set and weeps after long storage open | Replaced on every Grade A unit |
| Ball valve, 2 in | PP body, PTFE seat | Chemical, viscous | Handle shears; ball scores on grit | Function-tested, replaced if scored |
| Camlock adapter, type A/F | Aluminium or poly | Hose connection | Thread galls, cam arms bend | Supplied new where ordered |
| Dust cap, type DC | Poly | Transport closure | Lost in transit, never replaced | Fitted before despatch, always |
| Screw cap, 6 in solid | HDPE | Storage and transit | Gasket compression set; overtightening crazes the neck | New cap and new gasket on Grade A |
| Screw cap, 6 in vented | HDPE with one-way vent | Dispensing only | Pumps moist air in during storage | Supplied only when asked for, with a warning |
| Bung insert, S60×6 / S70×6 | HDPE | Adapter seat | Cross-threaded by force | Checked for thread damage under a light |
| Tamper seal | Nylon or wire | Evidence of opening | Cut and discarded, then nobody can tell | Fitted on all food-grade despatches |
| Breather valve | PP with PTFE disc | Off-gassing cargo | Blocked by crystallisation | Recommended for hypochlorite and peroxide |
| Internal dip tube | HDPE | Pump suction | Trapped residue; blocks a wash route | Removed and washed separately, or discarded |
Gaskets are the cheapest component in the assembly and the single most common cause of carried-over odour. We do not reuse them on any Grade A or Grade B unit, and we will not sell you a food-grade tote with its original gasket in it.
Where your order is standing right now.
The twenty-two point intake inspection.
| # | Check | Pass criterion | Fail consequence |
|---|---|---|---|
| 01 | Prior-contents declaration present | Named product, filler, fill date | Quarantine bay until named, or refused |
| 02 | Cargo against exclusion list | Not on the published list | Refused at the gate, load turned away |
| 03 | Residual heel volume | Under 1 gal, drainable | Charged back, or refused above 5 gal |
| 04 | Odour, cap off, ambient | No detectable cargo odour after rinse | Drops to Grade C or reclaim |
| 05 | Bottle wall thickness, four points | Within 15% of nominal | Reclaim |
| 06 | Crazing under raking light | No branching cracks anywhere | Reclaim — crazing never improves |
| 07 | Stress whitening at the sump | None, or faint and non-progressive | Grade C maximum |
| 08 | Bulge, measured at mid-wall | Under 6 mm from datum | Grade C or reclaim by severity |
| 09 | UV chalking on the sun face | Surface only, no wall loss | Grade C for outdoor-only use |
| 10 | Neck thread condition | Clean start, two full turns by hand | Rebottle or reclaim |
| 11 | Internal scope, 360° | No film, no deposit, no shadowing | Re-wash, then regrade |
| 12 | Weld node count and integrity | 44–54 nodes, none cracked | Cage repair or scrap the cage |
| 13 | Cage geometry, diagonal check | Within 10 mm across diagonals | Press back or scrap |
| 14 | Galvanising condition | No red rust through the zinc | Grade C, or wire-brush and paint |
| 15 | Base weld to pallet | All welds sound under load | Scrap the base, transplant the bottle |
| 16 | Pallet type and ISPM stamp | Matches order; stamp present if export | Re-sorted to the correct bay |
| 17 | UN plate legible | All fields readable, dates in date | Sold as non-regulated service only |
| 18 | Leak test, pneumatic decay | Under 1 kPa loss in 10 min at test pressure | Repair and retest, or reclaim |
| 19 | Valve function, full travel | Opens, closes, seals dry | Valve replaced |
| 20 | Gasket condition | Not reused on A or B — always new | New gasket fitted |
| 21 | Photographs, four plus cage stamp | In focus, bay number visible | Reshot before despatch |
| 22 | Passport record written | Cage ID, grade, route, dates, operator | Unit does not leave the yard |
Checks 05 to 09 are where most units lose a grade, and they are all condition of the bottle rather than cleanliness. A container can be surgically clean inside and still be Grade C because of what five Michigan winters did to the outside.
Specification questions, in detail.
Can a cage be reused with a new bottle?
Yes, and that is what rebottling is: a new blow-moulded HDPE bottle fitted into an inspected cage and base. Cages outlast bottles about three to one, which is why the trade exists.
The cage goes through the same inspection as everything else first — 44 to 54 weld nodes counted individually, diagonals measured, base welds loaded, galvanising checked at the welds. We fitted 4,118 new bottles in 2025. Bench turnaround on contract work is 48 hours.
Do you have 350 and 500 gallon containers?
Yes, as stainless bins rather than caged composites. A 350-gallon square 304 bin is 48 × 42 inches and 55 inches tall with a 420 lb tare; a 500-gallon cylindrical 316L is 52 inches in diameter, 74 tall, 580 lb.
They are the right answer for aggressive acids above SG 1.6, for hot cargo, and for anything where you want a container that will outlive several poly ones. They do not stack, and the trailer count drops to fourteen for the 500s.
What is the heaviest cargo you would put in a reclaimed poly tote?
In practice, 50% caustic soda at SG 1.53 in a 275 — which grosses 3,637 lb — is about where we stop being comfortable, and we check the customer's forklift rating before quoting it.
Sulphuric acid at 93% and SG 1.83 we will not put in poly at all; that is steel or stainless service. The limiting factor is rarely the bottle's burst strength and almost always everything underneath it: forks, beams, floors.
How do I work out whether my cargo is too heavy for a 330?
Multiply litres by specific gravity to get kilograms, or gallons by 8.34 by specific gravity to get pounds, then add the tare — 127 lb for a 275, 145 lb for a 330 — and compare against the maximum gross mass on the UN plate.
The plate figure is the binding one. As a rough guide, cargo above about SG 1.4 belongs in a 275 rather than a 330 simply because the taller bottle puts more mass on the same footprint, and above SG 1.6 you are usually looking at lined steel or stainless rather than poly.
What is the difference between a 275 and a 330, apart from volume?
Height, mostly. Both sit on the same 40 × 48 inch footprint; the 275 is 46 inches tall in the standard build and the 330 is 53. The trailer count is identical at twenty on the floor, which surprises people.
The consequence is density: a 330 full of anything heavy puts more mass on the same square footage, so forklift ratings, racking and floors all need checking against the real figure. For dense cargo, two 275s beat one 330 and a half.
How do I tell which buttress thread I have?
Measure the outside diameter of the male thread: roughly 60 mm is S60×6, 70 mm is S70×6, 75 mm is S75×6. S60×6 is the European norm — Schütz and Werit — and S70×6 covers Mauser and most North American bottles.
The reason this matters is that all three will start on each other and then bind after a turn or two. Two turns and a stop means the wrong standard. Forcing it crazes the bottle neck permanently, and a crazed neck is not repairable.
Which gasket do I need?
EPDM for water, glycols, caustics, fertilisers and most food products. Viton for acids, hydrocarbons, solvents and anything aromatic. PTFE for aggressive oxidisers and where nothing else is rated.
The two expensive errors are EPDM in hydrochloric acid, where it is destroyed in weeks, and EPDM in hydrocarbons, where it swells. If you tell us the cargo we specify the elastomer, and it is on the component list that ships with the unit.
New container against reclaimed, without the sales pitch.
There are jobs where a new container is the right answer. We would rather say so than sell you the wrong thing and collect it back in a year.
Buy new when
- The cargo is a regulated Packing Group I material
- You need a specific design type, pressure rating or exotic liner nobody reclaims
- Your customer's audit requires virgin packaging in writing
- The product carries an allergen claim and rebottled will not satisfy the auditor
- You need five hundred identical units with identical plate dates on one date
- The container is part of a sealed, validated single-use process
Buy reclaimed when
- The cargo is water, glycol, fertiliser, a utility liquid or an unregulated industrial product
- A documented prior cargo and a published wash route satisfy your requirement
- You want the same container at 30 to 60 percent of the new price
- You want the impact figure, and the methodology behind it, in your own reporting
- You need units this week rather than on a moulder's lead time
- You want rebottled: a new HDPE bottle in an inspected cage, which is new where it touches the cargo
What actually moves the price of a reclaimed tote.
| Driver | Direction | Typical effect | Can you control it? |
|---|---|---|---|
| Grade | A costs more than C | Up to 3× across the range | Yes — most buyers over-specify |
| Wash route required | Route 3 over Route 1 | +18 to +30% | Yes, by naming the real end use |
| New bottle (rebottled) | Up | +40 to +60% over washed | Yes — only food and potable truly need it |
| Quantity against trailer fit | 20, 40, 60 are efficient | ±15% on delivered cost | Yes, and this is the easiest saving |
| Freight zone and lane | Lane beats distance | ±40% on delivered cost | Partly — ask which day we run your lane |
| Season | B and C peak in spring | +15 to +20% March–May | Yes, if your timing is flexible |
| Pallet base specified | Steel or composite over timber | +4 to +20% on the base | Yes |
| New valve and cap | Up | Fixed per unit | Yes — reconditioned hardware is an option on C |
| UN plate in date | Up | +8 to +12% | Only if your cargo is regulated |
| Resin and scrap steel index | Both directions | Moves the whole market | No |
| Diesel | Up with fuel | Freight line only | No |
| Take-back credit on your old units | Down, against the invoice | Offsets part of the order | Yes — ask before you dispose |
We quote containers and freight as separate lines, because a single delivered number hides which of these twelve things you are actually paying for. If a quote you are comparing does not split them, ask.
Lead times, honestly, by grade and quantity.
| Order | Grade A food | Grade A washed | Grade B | Grade C | Rebottled |
|---|---|---|---|---|---|
| 1–4 units | 2–4 days | Same or next day | Same or next day | Same day | 3–5 days |
| 5–19 units | 3–6 days | 1–3 days | 1–2 days | Same or next day | 5–8 days |
| 20 (one trailer) | 5–8 days | 2–4 days | 2–3 days | 1–2 days | 7–10 days |
| 21–60 | 1–2 weeks | 4–8 days | 3–6 days | 2–4 days | 2–3 weeks |
| 61–200 | 2–4 weeks | 1–2 weeks | 1–2 weeks | 4–8 days | 4–6 weeks |
| Over 200 or scheduled programme | By schedule | By schedule | By schedule | By schedule | By schedule |
Grade A food is slower than everything else because Route 3 runs at 55 units a day against 90 on the other routes, and because the paperwork is checked twice. In March to May, add roughly a week to Grade B and C — that is the agricultural pull, and it is the most predictable thing in this market.
The twelve-minute check to run when the truck arrives.
Do this before the driver leaves, with the paperwork in your hand. It takes about a minute a unit on a small order and it is the only moment when a problem costs you nothing to raise.
Before anything comes off the trailer
- Count the units and compare against the bill of lading, not against memory.
- Photograph the load in the trailer, from the door, before the first unit moves. This single photograph settles almost every freight-damage dispute.
- Look along the top of the load for crushed cages, which is what a stacked load that shifted looks like.
On each unit, as it lands
- Read the cage stamp and check it against the photographs you were sent. Same unit, or not.
- Cap on and tight? A missing or loose top cap means the unit travelled open.
- Dust cap on the discharge? If it is missing, the valve has been exposed to road spray.
- Open and close the valve through full travel, then wipe it dry and watch it for a minute.
- Look along the lower corners and the sump under a raking light for whitening or cracks.
- Check the diagonals by eye: a cage out of square has been hit.
- Look at the base welds, all four corners, with the unit lifted a couple of inches.
- Read the UN plate and confirm the periodic dates match what you ordered, if your cargo is regulated.
On the paperwork, before you sign
- Prior-contents sheet present, naming product, filler and fill date.
- Grade stated, and the wash record attached if it was Route 2, 3 or 4.
- Leak test record present for every A and B unit, with actual numbers on it.
- Gasket material named on the component list, and matching your cargo.
If something is wrong
Note it on the delivery paperwork before signing and photograph it with the unit's cage stamp in the same frame. Then email us. With a cage ID and a photograph we can pull the intake record, the wash log, the leak test and the despatch photographs within minutes, and the conversation is about facts rather than recollection. Units that are not as described come back on our freight, not yours.
Price, quantity and when to buy.
What is the most expensive mistake buyers make?
Specific gravity, by a wide margin, and it is never the container that fails. A 275-gallon tote of 50% caustic soda grosses 3,637 lb rather than 2,420. What fails is a forklift, a racking beam or a warehouse floor rated for the water figure.
Second place is buying Grade A for a job Grade C does. Third is ordering twenty-two units. All three cost more than the containers did.
Can I rent instead of buying?
We do not rent, and the arithmetic is why: a reclaimed tote costs a fraction of a new one and holds residual take-back value at end of life, so for almost every use case buying and selling back beats renting.
Where people genuinely want rental, what they usually want is a scheduled programme — units delivered when needed, collected when finished, credited on return. That we do, and it behaves like rental on your cash flow without the premium.
Why is one supplier's Grade A cheaper than another's?
Because 'Grade A' is not a standard. It is whatever each supplier means by it, and the only way to compare two of them is to ask what would disqualify a unit from that grade and what records come with it.
A washed unit with one documented food cargo, a logged Route 3 wash, a new gasket and a leak test with numbers on it is a different object from a rinsed unit that looked clean. Both get called Grade A. One of them costs forty percent more and is worth it; the other is a gamble priced like a certainty.
Is it cheaper to buy twenty or to buy five, four times?
Twenty, nearly always, and the reason is freight rather than any volume discount on the containers. Twenty units fill the floor of a 53-foot van, so the freight per unit is at its lowest point on the whole curve.
The cliff is just past it: twenty-two units pays for two trailers to move two containers. If your number is anywhere near a trailer boundary, tell us it is flexible and we will tell you which way to move it.
Do you ever tell people to buy a cheaper grade?
Constantly, and it is the most reliable sales tactic we have. Roughly half the enquiries that ask for food-grade are for site water, dust suppression, ballast or fabrication, where Grade C does the same job for about a third of the price and lasts exactly as long under that treatment.
The money we lose on the first order we get back on the next four, and it means that when we do say you need rebottled, you can believe us.
What does take-back actually pay?
It depends on condition band and on what the cargo was, and we quote it per unit rather than as one number for the lot — good units, utility units and reclaim units priced separately so you can see what you are being paid for.
We pay for units that will fail every test, because a cage is 55 lb of steel at 92% recovery and a bottle is 42 lb of HDPE at 68%. Buying that material from you is cheaper for us than buying it on the open market, which is the whole economic argument for a take-back programme existing.
Why are containers and freight on separate lines?
Because a single delivered number hides which of a dozen variables you are paying for, and makes comparing two quotes impossible. Grade, wash route, hardware, pallet base, plate status, lane, season and quantity all move independently.
It also means that when you come back in six months, we can tell you whether the price moved because resin moved or because diesel moved. If a quote you are comparing does not split them, ask — the answer tells you something either way.
Pallet bases compared, including the one you cannot export.
| Base | Tare | Forklift | Pallet jack | Export | Washdown | Typical price index |
|---|---|---|---|---|---|---|
| Steel pallet | 31 lb | Four-way | Yes | Yes | Excellent | 100 |
| Composite / plastic pallet | 26 lb | Four-way | Yes | Yes | Excellent | 96 |
| Steel-and-wood hybrid | 38 lb | Four-way | Yes | ISPM 15 heat-treat stamp required | Poor — timber absorbs | 88 |
| Full timber pallet | 44 lb | Four-way | Marginal | ISPM 15 stamp required | Poor | 80 |
| Rigid plastic skid, two-way | 22 lb | Two-way only | No | Yes | Excellent | 84 |
If the container is leaving the country, a timber base needs the ISPM 15 heat treatment stamp or it will be stopped. We sort for base type at intake, so ask for steel or composite at quote stage rather than discovering the problem at the dock.
Temperature limits and the derating nobody mentions.
| Temperature | HDPE bottle | Steel cage | Gasket | Stacking allowed | Practical effect |
|---|---|---|---|---|---|
| Below −20 °F | Brittle | Fine | Hardened | No | Impact cracking at the sump corner; do not forklift a cold full tote hard |
| −20 to 32 °F | Serviceable | Fine | Stiff | Yes, derate 25% | Water-based cargo freezing; fill to 85% only |
| 32 to 100 °F | Full rating | Full rating | Full rating | Yes, full | Normal service window — every published figure assumes this |
| 100 to 120 °F | Softening | Fine | Fine | Derate 50% | Visible bulge in a full tote standing in July sun |
| 120 to 140 °F | Marginal | Fine | Check cargo | No | Creep accelerates; never stack, never rack |
| 140 to 160 °F | Short excursion only | Fine | EPDM limit | No | Wash bay territory — empty units only |
| Above 160 °F | Not suitable | Fine | PTFE only | No | Permanent deformation; the unit leaves as Grade D |
Heat-affected HDPE does not recover its original wall strength when it cools. This is why anything that has been near a fire is refused at our gate regardless of how it looks.
The fourteen fields that make a quote unambiguous.
Send us these and the quote comes back the same day, correct. Leave half of them out and we start with questions, which costs you a day.
- Cargo, by product name — and the SDS if it is anything unusual
- Specific gravity, or let us look it up, but somebody must
- End use: storage, transport, dispensing, fabrication, standby
- Quantity, and whether it is flexible — this is where trailer arithmetic saves you money
- Size: 275, 330 or 350 gallons, or tell us the volume and let us pick
- Grade, or better, let us recommend one from the cargo and end use
- Gasket requirement, if your cargo has one — EPDM, Viton or PTFE
- Valve and cap: standard, new, vented or specified
- Pallet base: steel, composite or any — and whether it is leaving the country
- Whether the UN plate must be legible and in date
- Delivery zip code, and whether you have a dock or need a lift gate
- Delivery window, and whether it is hard or indicative
- Documentation you need, and the format your auditor wants it in
- Whether you have old units to go back on the same visit
Ten questions that tell you what a supplier actually is.
Ask these of us too. A supplier who answers all ten without hesitation is running a real process; one who cannot answer three of them is reselling whatever came in on the last truck.
- What was in this specific unit, and who filled it? Hesitation here is the only red flag that matters.
- What would disqualify this unit from the grade you just sold me? No published disqualifiers means no grading system.
- Can I see photographs of the actual units before I pay, with the cage stamp visible?
- What did the third rinse read, and what did your supply water read that morning?
- Is the gasket new? If not, why am I paying for a clean container with the old cargo's elastomer in it?
- What method, pressure and hold time was the leak test, and what decay did it measure?
- Are the periodic test dates on the plate in date, and will you photograph the plate?
- Are containers and freight quoted as separate lines?
- Will you put in writing what you are not certified for?
- Will you take these back at end of life, and will you pay for them?
Symptom, cause, what to do about it.
| Symptom | Most likely cause | Check first | Fix |
|---|---|---|---|
| Weeping at the valve when closed | Seat compression set from long open storage | Close fully, wipe dry, watch 10 min | Replace the valve; store closed in future |
| Drip from under the valve body | Flange gasket, not the valve | Feel behind the valve for wet | Pull the valve, new flange gasket |
| Cargo odour in a clean tote | Original gasket retained, or cap gasket | Smell the gasket itself, off the unit | New gasket; re-rinse; air with the cap off |
| Bottle bulging at mid-wall | Overfill, heat, or off-gassing cargo | Cargo SDS for gas generation; ambient temp | Vented cap at point of use; reduce fill to 85% |
| Condensate on top of the cargo | Vented cap left on in storage | Which cap is fitted | Solid cap for storage; vent only when dispensing |
| Crack at the lower corner | Water-based cargo froze at full fill | Fill level history | Unit is finished — we will take it back for reclaim |
| White cloudy patch at the sump | Stress whitening from forklift impact | Raking light for branching cracks | Monitor; no crazing means serviceable, Grade C |
| Fine branching cracks | Crazing, from chemical stress or UV | Any raking light at a shallow angle | Retire the bottle; the cage and base are reusable |
| Flow stops mid-discharge | Vacuum lock — no air in | Crack the top cap and listen | Vent while dispensing, always |
| Slow flow on a cold morning | Cargo viscosity, not a blockage | Cargo temperature against its SDS | Warm the product; never heat the bottle directly |
| Adapter binds after two turns | Wrong buttress standard | Compare S60×6 / S70×6 / S75×6 | Correct adapter or a proper reducer; never force |
| Cage node cracked | Impact, or a stacked load over rating | Count cracked nodes; check plate stack rating | Do not stack; return for cage swap |
| Tote rocks on the forks | Base weld failed at one corner | Lift 2 in and look at all four welds | Take out of service immediately — transplant job |
| Rust bleeding through the zinc | Galvanising breached, usually at a weld | Wire-brush a test patch | Cosmetic for utility use; fails food-grade intake |
| Label illegible after a season | Direct-print on HDPE in UV | Whether the UN plate is also fading | Stencil and clear-coat, or stainless tag |
Using the container, answered at length.
How long can I leave a cargo sitting in a tote?
The container is usually not the limit — the cargo is. Hypochlorite loses strength continuously and faster when warm. Hydrogen peroxide off-gasses and needs a vent throughout. Vegetable oils oxidise. Latex is finished if it freezes. Glycols and fertilisers are indefinitely stable.
For the container itself: solid cap, valve closed, out of direct sun, filled to 85% if the cargo is water-based and the temperature will drop below freezing. Under those conditions a sound bottle will sit for years without any change we can measure.
Can I store drinking water in a reclaimed tote?
In a rebottled unit, yes — a new HDPE bottle in an inspected cage, with an FDA-compliant EPDM gasket and new closures. For potable water that is the only option we will sell you.
Not in a washed unit, however good the wash. The bottle has a history, and for drinking water the correct answer to 'what was in it before?' is 'nothing'. Keep it out of sunlight, use it within a season, and treat the water as your own responsibility rather than the container's.
Is a tote safe for diesel or heating oil?
The container handles it: HDPE is good with diesel and a Viton gasket is correct — never EPDM, which swells in hydrocarbons. The constraint is almost never the tote.
It is your local fire code, insurer and state environmental rules, which often restrict storing fuel in a non-metallic container, require secondary containment, or cap the volume on site. Check before you buy, because the container will arrive compliant and the installation may not be.
Can I use a tote for compost tea or digestate?
Yes, and Grade B rinsed is the right stock for it. The one rule is venting: biological activity generates gas, and a sealed cap on a fermenting cargo will bulge the bottle and eventually deform it permanently.
Fit a vented cap or a breather valve at the point of use, keep the unit out of direct sun to limit the temperature swing, and expect to wash it out between batches rather than at end of season.
What size tote for livestock water?
A 275 on a level bearing pad, Grade B rinsed with a documented prior cargo, black or painted rather than translucent. Translucent bottles grow algae in one season in the open.
Our framed trough build is the better answer if animals have direct access: a half-height open trough, 120 gallons, with the cage left intact as the frame. Full totes should never be where livestock can rub against them — 2,420 lb on four square feet does not need much persuasion to tip.
Can I heat the contents of a tote?
Gently and indirectly, never with a direct heat source on the wall. A blanket rated for IBC use, or a warm room, is fine. A torpedo heater pointed at the bottle, a flame, or any local hot spot is not.
Keep the cargo below 100 °F for normal service. Above that the bottle softens, creep accelerates and the stacking rating halves; above 120 °F do not stack at all. Heat-affected HDPE never recovers its original wall strength, and the failure comes later with no visible warning.
How do I get the last of the cargo out?
Tip the unit forward slightly so the sump is the low point, and vent the top cap while you drain — most 'the valve is blocked' calls are a vacuum lock, not a blockage. Crack the cap and listen for air.
Expect to leave under a gallon as heel in a standard sump. If recovering that last gallon matters to your economics, ask about units with a dedicated discharge geometry rather than fighting a standard sump.
Fourteen stations: what happens between the gate and the truck.
A container that arrives on a Monday morning and leaves as Grade A food on Thursday has been through fourteen stations, and at eight of them it can lose a grade or be pulled out entirely. This is the route, in order.
1 — Gate and declaration
Nothing comes off the trailer without a named prior cargo in writing. No name, no entry; the load goes back. This is the single rule that protects everything downstream, because one undeclared pesticide tote in a recirculating wash loop can affect a hundred units before anybody smells it.
2 — Exclusion screen
The declared cargo is checked against the published exclusion list. Pesticides, pharmaceutical actives, PFAS formulations, isocyanates, radiological material, fire-affected units and polymerising oils are refused outright, whatever the condition and whatever the price.
3 — Heel drain and measure
Residual cargo is drained, measured and routed to the correct waste stream. Under a gallon is normal. Above five gallons the load is a liquid-waste job rather than a container job, and it is priced or refused as one.
4 — Weigh and log
Yard scale, not a unit count. Every published tonnage on this site traces back to this scale, which is why our disposition table reports weight and units separately and why they do not divide into each other neatly.
5 — Cage and base inspection
Node by node, 44 to 54 of them, counted rather than sampled. Diagonals measured. Base welds loaded and watched. Galvanising checked at the welds, which is where it always goes first.
6 — Bottle condition
Wall thickness at four points, raking light across the whole surface for crazing, sump checked for stress whitening, mid-wall measured for bulge against a datum. This is where most grade losses happen, and none of them are about cleanliness.
7 — Wash route assignment
Decided here, by prior cargo, by an inspector — not at the sales desk by price. A food cargo goes to Route 3 whether the customer asked for it or not; an industrial cargo cannot buy its way onto Route 3.
8 — Wash
Route 1 rinse, Route 2 hot caustic, Route 3 potable triple rinse, or Route 4 to a customer's own written SOP. Temperature, dwell, rinse count and chemistry dosing are logged against the cage ID as it happens, not reconstructed afterwards.
9 — Rinse verification
Third-rinse conductivity against the day's measured supply water, final pH, 360-degree internal scope, and an independent two-operator odour check with the cap off. Any one of them failing sends the unit back to station 8.
10 — Hardware
New gasket on every Grade A and B unit, no exceptions. Valve function-tested and replaced if scored. New cap. Adapter threads checked under a light. Tamper seal on anything food-grade.
11 — Leak test
Pneumatic pressure decay on the complete assembly, under 1 kPa loss in ten minutes. Method, pressure, hold time and measured decay are written to the record — a pass with no numbers behind it is not a leak test.
12 — Grade and passport
The grade is assigned against the published criteria and written to the passport with the cage ID, the wash route, the test dates and the operator who did it. Seven years of retention, reissuable on request.
13 — Photography
Four shots of the actual unit plus the cage stamp, bay number visible. These go to the customer before payment. It started as a way of ending arguments about Grade B and became our best quality control, because an inspector who knows the photograph goes out grades more conservatively.
14 — Bay and load plan
Into one of 168 numbered bays by grade and configuration, then load-planned against trailer capacity. Twenty on the floor, forty double-stacked empty. If your order is twenty-two units, this is the station where somebody emails you to suggest twenty or forty.
How the container in your yard came to be shaped like that.
The modern caged IBC is a surprisingly young object, and almost every feature of it is the fossil of a specific problem.
Drums and nothing between
Liquids moved in 55-gallon drums or in bulk tankers. Anything in between meant handling dozens of drums, which is why the intermediate category was invented at all.
The first rigid composites
A blow-moulded plastic bottle inside a steel frame, sized to a pallet footprint so a forklift could handle it. The idea has not changed since.
The pallet footprint settles
40 × 48 inches in North America, 1,200 × 1,000 mm in Europe. Every trailer count on this site descends from that choice.
UN performance testing
Packagings began to be approved by design type and performance test rather than by prescription, which is where the 31HA1 marking family comes from.
Periodic testing arrives
The 2.5-year leak test and 5-year inspection cycle formalised, creating the date-stamped plate that decides whether a used unit can still carry a regulated cargo.
Reconditioning becomes a trade
Enough units in circulation, and enough value in a steel cage that outlasts three bottles, for washing and rebottling to be businesses rather than favours.
One bay and a used pressure washer
Re:IBCtote starts in a rented bay in metro Detroit, washing totes for local chemical blenders who could not get a straight answer about prior contents.
Grading gets published
We write down the disqualifiers rather than keeping them in an inspector's head, because the arguments about Grade B were taking more time than the washing.
The passport
Every unit gets a record keyed to its cage ID: intake, wash parameters, test results, grade, operator, dates. Seven-year retention, reissuable years later.
38,210 containers
Our largest year: 94.2% diverted, 4.4% residual published rather than rounded away, 4,281 tonnes of CO₂e avoided on factors we publish in full.
The same containers, different weather.
“Nobody has ever called us about a container failing. They call about a forklift, a rack or a floor, and it is always the same arithmetic: they multiplied gallons by 8.34 and the cargo was not water.”
Send us the cargo, not the grade.
Tell us what is going in the container and what you are doing with it, and we will name the grade, say what would disqualify a unit from it, and tell you if something cheaper does the job. That last part is why people come back.