I realized that the bottom of the jel has formed a brownish fuzzy mold. I know it's fuzzy because I ate some.
Why did it do this?! I didn't think it would be too old to eat but obviously it is. The only thing that I can think of is that I didn't "unmold" it after it set - I left it in the bowl.
Any suggestions how to keep it from doing this in the future would be AMAZING because I still have 2 boxes of the stuff.