The Chill Guide

How to Match a COA to a Product and Batch

A certificate of analysis should be matched to the product and batch you are checking. Finding a document with the same brand name is only a starting point.

Compare identifiers first

Record the full product name, flavor or variant, and batch or lot code from the package. Then look for corresponding identifiers on the report. A broadly named sample may need clarification from the manufacturer before you can connect it to a specific product.

Do not assume a report for a different flavor, format, or batch applies because the packaging looks similar.

Keep matching separate from results

  • Product and variant identified.
  • Package batch or lot code recorded.
  • Report identifiers compared.
  • Printed date labels and dates recorded.
  • Source URL or supplied file retained.

This checklist covers identification and dates only. It does not interpret laboratory results or establish what a product’s testing means.

If an identifier is missing or inconsistent, ask the manufacturer or retailer for the document corresponding to the exact product and batch. A newer date on an unrelated report does not resolve that mismatch.

Search available lab documents or request help matching a report.