I made this jar of cucumber pickles last week. I didn’t notice that the rubber sealing ring broke, a lot of air flowed in and within a week the the mold grew profusely into a fluffy covering. If it had been a tiny bit of mold I could take it off, put on a new rubber ring and let it continue fermenting, but this is too much, and out to the compost it goes. My compost will love it!