Don't eat anything that has expired.

Of course, some things are as long as possible. For those things, it has no shelf life. For example, high-grade liquor will not indicate the shelf life.

If the word "expired" is used, it must belong to an article with a certain "effective" service life (don't believe the "best service life" marked effectively, because it is a confusing word). Items that need a specified period of time are generally safe within the effective period of use, and they are not safe after this period!