Apple Butter not sealed
I think I know the answer to this, and I wouldn't even ask about pickles or salsa, but I found an 8oz jar of low-sugar apple butter I made on 10/3/10 that had the button popped, and I easily pulled the lid off (though it was stuck on slightly). It's been in my basement in a covered cardboard box (no ring) for a week. Should I pitch it? Or refrigerate it and use it ASAP?
Not sure if the problem with spreads is mold or if it could be contaminated with other nasty stuff (esp. since it's low-sugar). Thanks