There’s a little code, usually between four and seven digits, on a container of milk. It starts with two numbers and ends with between 1 and 5 digits---separated by a hyphen.
“Codes are usually printed near the top of the container or on lids. Sometimes they’re printed right on the label,” says the Where Is My Milk From website. Meanwhile, “The first part of the code will always be two numbers (between 01 and 56). Codes never start with letters,” it adds.
agricultured.org
