How to Verify Spices Are Steam Sterilised

How do I verify that Indian spices were steam sterilised, not ETO-fumigated?

Require the processing method in the contract, ask for the steam-treatment record for the lot, and confirm it with two lab results: an ETO residue test below 0.1 mg/kg and the microbial spec (e.g. Salmonella absent in 25 g) both met.

Why the method matters

Steam sterilisation reduces microbial load without leaving a banned pesticide residue, which is why it is the compliant route for the EU, where ethylene oxide has been a banned pesticide since 1991 with a 0.1 mg/kg default limit. A supplier claiming "steam sterilised" is claiming compliance, so it needs verifying.

How to confirm it

• —State steam sterilisation (not ETO) in the purchase contract.
• —Ask for the processing record tied to the export lot.
• —Require an ETO residue test below 0.1 mg/kg — a clean ETO result is consistent with steam, not fumigation.
• —Require the microbial spec (Salmonella absent in 25 g) to confirm steam actually achieved decontamination.

Frequently asked

Can a lab prove a spice was steam sterilised specifically?

Not directly, but the pairing is telling: a clean ETO residue result plus a met microbial spec is consistent with steam treatment rather than banned fumigation. Combine both with the processing record.