If you will be eating any leftover crab cakes within 3 to 5 days of having cooked them, your refrigerator is the ideal place for just all of them. You need to make sure that you wrap them well and seal them properly. This will help to preserve their flavor and texture and prevent any other foods in your fridge from being tainted by their smell. When you’re ready to reheat them, do so in the oven at a temperature of 370°F. If you’re going to be eating them later than five days, it is best to freeze them. It is a wise precaution to smell refrigerated crab cakes before freezing or after defrosting, and if they have a sour smell or a slimy texture, you should throw them away as they could be unsafe to eat.