2
votes
2answers
336 views

Shelf life of commercial jams with no preservatives?

This commercial peach jam does NOT contain any preservatives. Room temperature is 20 C. It is written on the bottle that it should be refrigerated after opening since it doesn't contain any ...
3
votes
2answers
3k views

What is the shelf-life of store-bought commercially-produced jam?

My question is similar to this one, but about store-bought jam. What is the shelf-life of store-bought jam – i.e. commercially prepared major brands – if not opened? Are the processes or ...