Hello,

Usually, I only lurk here, to learn and to find new idea. There seem to
be quite a few knowledgeable people around, it is a pleasure reading you.

I have a question about keeping mussels. On Thursday, I bought a (
vacuum?) sealed pack of mussels at the supermarket. I cooked half of
them that day, they were fine. The next day, I wanted to cook the other
half. It was in the now-open package. It turned out all the mussels had
opened. So I didn't eat them. According the expiration date, they should
still have been ok (for at that day). I felt sorry that the animals had
died in vain (and that I couldn't eat them, but the useless deaths
impressed me more).

Anyway, my question is: is it normal that they died before the
expiration date? Is it because the package had been opened? Or should I
go and tell the supermarket their expiration date wasn't accurate?

TIA,

jake