[Mastador1]

Whatever she felt the life of the milk might be, legally a store or restaurant for that matter cannot sell or use a product that has passed its sell by/use by date. What’s also interesting is all the people who throw out perfectly good medicine because it has reached it’s use by date, the fact is that most medicine is still effective for 7 years after that date if I recall the study correctly. It is to expensive for pharma companies to keep samples and retest for extended studies.

[jiggyboy]

legally a store or restaurant for that matter cannot sell or use a product that has passed its sell by/use by date

I don't think that's true. Almost none of the many variations of "sell by" or "best by" are required or regulated by the FDA -- they are entirely at the discretion of the manufacturer. The only one that is, is "expires on", and that's rarely on anything other than baby formula and baby food.

[Smokin' Joe]

What’s also interesting is all the people who throw out perfectly good medicine because it has reached it’s use by date, the fact is that most medicine is still effective for 7 years after that date if I recall the study correctly. It is to expensive for pharma companies to keep samples and retest for extended studies.

Be careful with that. While some medications are fine, Tetracycline, for example, breaks down into toxic byproducts after the use by date.

Do your homework.