35 Foods That Should Never Be Placed in the Refrigerator

17. Vinegar

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The best thing about vinegar is that it can be used over and over again. A research conducted by the vinegar institute reported that vinegar has a nearly infinite shelf life. White vinegar may not improve after being stored for a long time. Vinaigrettes with garlic, onion, shallots, or spices, on the other hand, can need to be refrigerated.