Here are some common ways to pickle food: Basic Vinegar Pickle: This method involves submerging the food (e.g., cucumbers, onions, peppers) in a mixture of vinegar, water, salt, and sometimes sugar and spices. Fermented Pickle: In this method, the food is submerged in a brine solution, and natural fermentation occurs over several days or weeks. Fermented pickles often use lacto-fermentation, which relies on beneficial bacteria to convert sugars into lactic acid.