The public has more or less invented the idea that the dates on food products have some safety value, and that you should throw out food that is expired.
I kinda’ wonder why people aren’t listening … it’s not like this is news. I can remember having this talk with an old girlfriend back in the late-80s.
Yet people don’t listen. I’ve known people to throw out unopened yogurt when the date passes: folks … yogurt is already spoiled.
And I’m quite sure there are people who throw out everything with a date … except their bottles of wine. Wine must be an anti-food if it gets better with age.
I’m not an ogre on this — I threw out a bottle of milk just yesterday. But it was because the cap wasn’t put on properly at the dairy, and it smelled odd when I opened it.
Read the whole thing: it actually has some history of the development of “sell by” dating. Frankly it’s more disturbing than I’d imagined.
FWIW: I remember back in the 70’s as a kid that the milk had a very useful thermometer motif on the side that emphasized that spoilage could occur very quickly at room temperature, but that milk would last forever in the fridge.