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What Is Mass Balance in Cotton Sourcing? Better Cotton, Explained
What is mass balance Better Cotton?
Under mass balance, a trader or spinner is allowed to blend Better Cotton with conventional cotton, on one strict condition: the volume of Better Cotton sold can never exceed the volume bought at any point in the chain. Before the gin, Better Cotton seed cotton and lint are kept physically separate, so every Better Cotton bale leaving the gin is 100% Better Cotton; mass balance applies from the ginner onward. Each kilogram of Better Cotton lint earns one Better Cotton Claim Unit (BCCU), and those units — not the physical fibre — are tracked on the Better Cotton Platform and allocated to orders.
1 · Grown & licensed
Better Cotton is grown by licensed farmers and kept separate through to the gin, where it earns its claim units (BCCUs).
2 · Mixed downstream
From the gin onward it can be substituted or blended with conventional cotton as it moves through spinning, weaving and manufacturing.
3 · Sourced by the brand
The retailer sources the Better Cotton volume and the farmers see the benefit — but the physical Better Cotton may not be in the end product.
Why source cotton this way?
If every garment had to contain physically traceable, segregated Better Cotton, the cost and complexity would be enormous — and far fewer brands would take part. Mass balance deliberately trades physical traceability for reach:
Mass balance vs physical traceability
In late 2023 Better Cotton launched physical traceability as a second option alongside mass balance, letting members trace Physical Better Cotton back towards its origin. Both now run side by side:
| Mass balance | Physical traceability | |
|---|---|---|
| What is tracked | Volume (BCCUs), not the physical fibre | The physical Better Cotton itself, through a chain-of-custody model |
| Mixing | Substituted / blended with conventional downstream | Segregation (single- or multi-country) or controlled blending |
| Traceable to origin? | No — not linked to country of origin | Yes — to country of origin (from India, back to the ginner) |
| Cost & complexity | Lower — built for scale | Higher — needs clean origin & chain-of-custody data |
| Introduced | The model BCI was founded on | Launched end-2023, under the 2030 strategy |
Either way, the work that makes a claim credible happens at the farm and gin level in India — licensing and training the farmers, and (for physical traceability) capturing the origin and chain-of-custody data. Read the detail in cotton traceability: farm to gin.
Do you need to become a Better Cotton member?
Better Cotton's own guidance is simple: if you are a retailer or brand, or your organisation buys lint cotton, you will need to become a Better Cotton member to source with mass balance. If neither is true, membership is optional and you can register for a Better Cotton Platform account instead. (Anaxee is not a Better Cotton member and does not handle membership — we run the field and verification work underneath it.)
Where Anaxee fits
Mass balance is efficient, but it moves the whole weight of credibility onto the field. If the physical Better Cotton isn't in the end product, then the only things that make a brand's claim real are that the farmers are genuinely licensed and trained, and that the volumes add up — and both of those have to be true on the ground in India, every season. That is Anaxee's work: mapping and training the farmer base, capturing farm-level data, and reconciling the volumes that mass balance depends on. For brands moving to physical traceability, we capture the farm-to-gin origin data the chain needs. We don't buy or trade the cotton and we aren't a certifier — we are the independent field and verification layer that makes either model trustworthy.
We run the field, farmer and volume-integrity work underneath your claim — as a permanent on-ground operation, season after season.
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FAQs
What is mass balance in simple terms?
It's a volume-tracking system. A company can mix Better Cotton with conventional cotton, as long as it never sells more Better Cotton than it bought. The Better Cotton you pay for supports licensed farmers, but the actual fibres in your product may be conventional cotton.
Is mass balance cotton actually in my product?
Not necessarily. Under mass balance the physical Better Cotton is substituted and blended along the chain, so it may not be in the end product — but the volume you sourced still funds the programme and reaches farmers. If you need the physical cotton tracked, that's physical traceability.
What is a BCCU?
A Better Cotton Claim Unit — one is created for each kilogram of Better Cotton lint leaving the gin. BCCUs move through the supply chain and are allocated to orders on the Better Cotton Platform; they are how mass-balance volume is tracked.
Why not just make all cotton physically traceable?
Cost and complexity. Keeping Better Cotton physically segregated end-to-end is expensive, so fewer brands would participate and fewer farmers would benefit. Mass balance trades physical traceability for scale; physical traceability (launched end-2023) is now available for those who need it.
How does Anaxee help with mass-balance sourcing?
Because mass balance breaks the physical thread, the credibility sits in the field. Anaxee maps and trains the farmer base, captures farm-level data, and reconciles the volumes mass balance depends on — and captures farm-to-gin origin data for brands moving to physical traceability. We're the independent field and verification layer, not a trader or certifier.
