What Is a Batch Record? Seed-to-Harvest Traceability Explained
If one document reveals whether a farm is truly GACP-ready, it's the batch record β the file that tells the complete life story of one production run, from seed to buyer.
The simple definition
A batch record is the data file for one production run of plants grown, managed, and harvested together under the same conditions. The governing principle: everything that happened to this batch lives in this file, and the whole thing is retrievable as a single unit when an auditor or buyer asks.
What goes into one batch record
- Batch identity β batch code, strain/variety, seed or clone source (with reference documents), plant count, room/area
- Production timeline β sowing, transplant, flip to flower, harvest date
- Every input β all fertilizers and treatments applied, with supplier lot numbers, quantities, dates, and the applicator's name
- Environmental data β temperature, humidity, and related values across the full cycle (sensors make this part 100% automatic)
- Events and deviations β pest issues, interventions, environmental excursions, and what was done about them
- Harvest and post-harvest data β who harvested, wet weight, drying conditions and duration, dry weight, culled waste
- Lab results (COA) β the batch's analysis certificate, attached to the same file
- Destination β sold to whom, how much, when β closing the traceability loop
Why auditors (and buyers) weight it so heavily
Because the batch record is the combined test of every system on the farm. If input logs have holes, if environmental data is missing, if nobody knows who did what β it all surfaces in the batch file at once. That's why auditors love "pick one random batch and show me everything": it measures the whole operation with a single question.
The commercial side mirrors it: GMP-certified buyers require documentation for every batch they purchase. The farm that delivers a complete dossier instantly is the farm that gets the repeat order.
Missing weight = big questions
The most-forgotten element is weight reconciliation: wet weight β dry weight β packaged weight β waste. The numbers must add up, because an unexplained gap raises diversion questions β a serious matter for controlled crops. Logging waste (culls, trim) consistently from day one removes the entire problem.
The target worth setting: a complete batch dossier, printed within 5 minutes of being asked. Reach that, and you're ready for auditors and buyers alike.
Continue: ALCOA+ and audit trails, explained Β· The documents every GACP audit demands