Jams and jellies existed before refrigeration and were used to preserve fruit year round. Root cellars kept things cool and you would just inspect your food bef

Jams and jellies existed before refrigeration and were used to preserve fruit year round. Root cellars kept things cool and you would just inspect your food before eating. Pickles is another thing. They used to be stored in a big barrel and people would reach in and grab a room temp pickle, safe and preserved. Today, they're always fridge after opening. It's safer, but it's a spectrum of risk, not binary.