Have you been sad because your jam got mold after only a month or so?
That's how fancy jam works, no preservatives. You pay the price, but I've found a solution that's worked for years:
After you crack the jam open and use it (always with a clean knife, minimize time it's open! Don't let spores in!) Pour a thin layer of honey over the top of the jam. This will prevent mold. It's yummy too.
