In general, it’s important to remember that anything with a high water content will considerably change texture after being frozen. For example, frozen grapes are a favorite snack, especially in the summer. But if you let those grapes defrost, they become soggy unappealing lumps. For anything with a lot of water, it’s best to freeze it only if you plan to use it in cooking—it just won’t be the same raw. (Thawed raw tomatoes will be unappetizing in a salad, but can still work well in a sauce.) Follow this list of foods not to freeze to save you from spoiling your appetite. RELATED: 7 Foods To Consider Freezing Right Now While it won’t kill you, melted mayonnaise certainly won’t spread the same on a sandwich. You could always try to re-emulsify the mayo using an electric mixer, but you might have to add additional water to help the ingredients come back together, which will result in a thinner sauce.