Originally Posted by SOB
WHat might cause this to mold when it's been sealed the whole time?
If there were mold spores in there to begin with and/or it wasn't sealed well.
Might help to keep it refrigerated too.
The stuff AHS sells is squirted into a bucket from a big bulk vat they get (I assume). So, if things aren't too clean when thy are doing it some bugs could get in there. The stuff sold in the cans is probably sterilized after packaging so they can sit on the shelves for a while.