Taking Jindian pure milk as an example, the specific operation steps for checking the production date are as follows:

1. Prepare a box of pure milk with the production date to be checked, as shown below;

2. Check the specific information on the side of the outer packaging box of pure milk, including the business ingredient list, product standard code, production date and location, shelf life and other information; The following figure

3. See the top of the box for the production date displayed on the outer packaging of pure milk, and just check the production date on the top of the outer packaging box; The following figure