Food traceability is the ability to trace each batch of a food product back to the ingredients it was made from, and forward to the buyers who received it. Food traceability software keeps these links, together with the food maker's safety and quality records, for auditors and customers. It is a part of a quality management system (QMS) built for food makers.
When something goes wrong, speed decides the damage. If one lot of an ingredient is contaminated, the food maker must find every batch that used it and every buyer that received those batches. Without traceability, it must recall everything made over several weeks, to be safe. With traceability, it recalls only the affected packs. In India, FSSAI, the national food regulator, requires food businesses to be able to recall unsafe food. Export buyers ask for the same.
The software records each step. When raw material arrives, it gets a lot number, linked to the supplier and the test results. When a batch is made, the software records which lots went in and in what quantities, often from the food processing machinery on the line. When the batch is packed, each carton gets a batch code printed on it. When cartons are dispatched, the software records which buyer got which ones.
Say a spice company in Guntur makes chilli powder. A lab test on a sample from batch CP-0412 finds a pesticide residue above the permitted limit. The software shows that batch CP-0412 was made from three lots of dried chillies: A, B and C. A retest shows that only lot B is affected. The software then looks forward. Lot B was also used in two other batches, CP-0415 and CP-0419. The three batches together filled 1,400 packs, sent to one exporter and five distributors. The company recalls those 1,400 packs, not its whole month's output of 60,000 packs. It also stops buying from the trader who supplied lot B until that trader's next lots pass testing.
The same records serve other duties. They show auditors the cleaning schedules, the temperature checks and the training records of each line. For chilled foods, the temperature record from the cold chain is kept with each batch. Some buyers want to trace further back, to the farm where the crop was grown. That is covered by supply chain traceability.