First of all, after getting the onion rings of Shengnong chicken, I found that the onion rings of Shengnong chicken are surrounded by numbers, but some numbers have a small mouth, such as the picture, which is produced in 20 15, and the month is on the left.

The date is on the other side, so that the date you can find is the date of production.

Generally speaking, according to the packaging, the date of production of canned goods will go to the top and bottom of the can-shaped body or one side of the bottle body. If it is packed in paper or plastic bags, it will be printed on the seal. In short, every product has a date of production, so you can find it if you look carefully.