Commingled Food Lots: Preserve Every Input Relationship

FDA includes commingling in its transformation definition when the output is food on the FTL. Review process, food forms, and exemptions before assigning event requirements.

Keep that scope review separate from genealogy. A business can need source-to-output evidence for its own recall process even outside a particular regulatory requirement.

Two cucumber lots enter a cutting run producing three outputs. Preserve all known contributing identities and allocation evidence. If precise allocation is unavailable, record uncertainty instead of inventing proportions.

Support many inputs and many outputs in the record structure. Selecting one convenient input lot for the finished batch erases other relevant sources.

Yield loss, waste, conversions, and work in progress can explain quantity differences. They do not explain missing identity: balanced totals can coexist with incomplete source records.

Insert one missing input and one unit error into a drill. Both should remain visible with owned correction paths; a partial graph should not be marked complete.

FoodChainAPI suggests candidate Food Traceability List categories from product descriptions. Save the reviewed result beside the product specification; a category match does not establish exemptions, complete operational records, or certify compliance.