Which route is bringing you milk that will not pass?

Milk is collected on a route, held at a collection centre, then brought to the chilling plant. Every hour in that chain matters.

Rejections are recorded at intake. Which route, which centre, which vehicle, and how long it took usually is not, so the same route keeps souring.

Collection time, centre and vehicle attach to the lot, so a rejection points to a route rather than to bad luck.

Farmers are paid on fat and SNF. Testing happens, results are written, payments are made.

When a farmer disputes a reading there is a register, a page and a signature, and an argument that costs a relationship whichever way it goes.

The test result attaches to the collection at the moment it is taken, with the tester and the time.

Packed product goes to distributors and retailers. If one batch has a problem you need every carton, every route, every retailer.

That answer is expected in hours. Most plants would need a day or more, and while they look the product is still on shelves.

Batch attaches at packing and travels through dispatch, so the trace forward is one query.