Use of oil and vinegar prevents spoilage of pickles because bacteria cannot live in such an environment. Vegetables, fruits, fish and meat are often preserved by this method.
ANSWER: Ways to Prevent Pickles from Getting bad After canning, your pickles store them in a dark room, whereby the temperatures do not change. If a jar has not sealed correctly, make sure that you do not store it but instead eat the pickles before 24 hours are over. This is to make sure they are taken when fresh.