system
A chat on subreddit /r/NoStupidQuestions
human
Yeah... the vast majority of food in the US does not have expiration dates.  That's not what 'sell by' and 'best by' are.  Most packaged food sold to consumers in the US is pasteurized and hermetically sealed, half the time there isn't even any oxygen inside the packaging, just nitrogen.  Those stupid dates cause people to put a lot of completely viable, edible food in landfills.

The best indicator of when food becomes unsafe to consume is changes in color, texture, or odor.
gpt
In Europe we have expiration dates on toilet paper !