Does pre-made jello in the cup go bad?

Answer 1

Gelatin does have an expiration date, but generally the taste and texture of it will be unappealing long before visible signs of spoiling will appear. Generally, gelatin sealed in a container can last from 12-18 months if refrigerated and 3-4 if stored in a cool, dark area. Open containers go bad after about a week in the refrigerator.

Answer 2

No, you're supposed to keep it cold, but I guess everything goes bad eventually so it could go bad even though you keep it cold.