What to Do When a Batch Fails Specification
A failed batch is a commercial problem and a decision point, and rushing either part makes it worse. Verify the result, establish the cause, decide disposition on evidence, and settle cost against what the agreement says. In that order.
Do Not Act on an Unverified Result
This guide is for supplement, Ayurvedic and herbal brand owners in India.
A failing result can come from a genuine quality problem, a sampling error, a method difference, a transcription error or a laboratory issue. Acting on the first report, in either direction, is a mistake: releasing a genuinely failing batch is serious, and rejecting a good batch is expensive and damages a supplier relationship.
So the first step is verification. Confirm which method was used, confirm the sample was taken and handled correctly, and retest, ideally including the manufacturer’s retention sample for the same batch.
The Sequence
Work through in this order.
- Quarantine the batch so it cannot be dispatched while the question is open.
- Confirm the test method used and whether it matches your specification.
- Confirm sampling and handling were correct, including storage before testing.
- Retest, using a retained sample where possible.
- Test the manufacturer’s retention sample for the same batch.
- If confirmed, establish the cause with the manufacturer in writing.
- Check whether any of the batch has already been dispatched, and to whom.
- Decide disposition on the evidence: reject, rework if genuinely appropriate, or release with documented justification where the deviation is non-safety and demonstrably acceptable.
- Settle cost allocation against the agreement.
- Record the whole episode in the product file.
- Fix the specification or process point that allowed it.
Safety Failures Are Different
Not all failures are equivalent.
| Failure Type | Examples | Posture |
|---|---|---|
| Safety | Pathogens, microbial limits, heavy metals, contaminants | Urgent; do not release; professional advice immediately |
| Potency | Marker assay below specification | Serious; label accuracy at stake; verify then decide |
| Physical | Weight variation, hardness, disintegration | Assess functional impact; often a genuine reject |
| Sensory | Colour, odour, taste outside range | Commercial judgement; consumer-visible |
| Cosmetic | Minor appearance variation within function | May be acceptable with documentation |
Never treat a safety failure as a commercial negotiation. Potency failures are also not negotiable where the label states an amount, because the declaration is a claim.
Establishing Cause
The cause determines both the fix and the cost conversation.
Input Material
A raw material or extract that did not meet its own specification. Ask for the input certificates for that batch.
Process
A deviation in manufacture. Ask for the batch record and any recorded deviation.
Specification
The specification permitted something you did not intend. This is your fix, not theirs.
Testing
A method, sampling or laboratory issue. Common enough to always check first.
Request the batch record and input certificates in writing. A manufacturer who will not provide them during a failure investigation is telling you something important.
Cost and the Agreement
This is where a written agreement earns its keep.
If your agreement defines a batch rejection process with cost allocation, the conversation is straightforward. If it does not, you are negotiating from scratch during a dispute, which rarely goes well for the smaller party.
Two practical points. If any of the batch has already been dispatched, that is a separate and more urgent issue than the cost of the remaining stock, and professional advice applies. And whatever the outcome, use the episode to add the rejection and cost-allocation terms to the agreement if they were missing.
Checklist
Keep this available before you need it.
- Quarantine immediately; do not dispatch while the question is open.
- Treat any safety parameter failure as urgent and seek professional advice.
- Verify method, sampling and handling.
- Retest, including the manufacturer’s retention sample.
- Request the batch record and input material certificates.
- Establish whether the cause is input, process, specification or testing.
- Check whether any units have been dispatched, and to whom.
- Decide disposition on documented evidence.
- Settle cost against the agreement.
- Record the episode and the decision in the product file.
- Tighten the specification or process point that allowed it.
- Add rejection and cost terms to the agreement if they were absent.
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Frequently Asked Questions
What is the first thing to do about a failing result?
Quarantine the batch so it cannot be dispatched, then verify the result. A failure can come from a method difference, sampling error, transcription error or laboratory issue, so acting on an unverified report in either direction is a mistake.
Are all failures handled the same way?
No. Safety parameter failures such as pathogens, microbial limits or heavy metals are urgent: do not release the batch and take professional advice immediately. Potency failures put label accuracy at stake. Physical and sensory failures are judgement calls.
How do I establish the cause?
Request the batch record and the input material certificates for that batch in writing, and check whether the cause was an input material, a process deviation, a specification that was too loose, or a testing issue. Testing issues are common enough to check first.
Who pays for a rejected batch?
Whatever the agreement says. If it defines a rejection process with cost allocation, the conversation is straightforward; if not, you are negotiating during a dispute, which rarely favours the smaller party. Add those terms afterwards if they were missing.
What if some of the batch has already shipped?
That is a separate and more urgent matter than the cost of remaining stock. Establish immediately which units went where, and take professional advice, since withdrawal decisions and any notification obligations are legal questions.