Ask Extension Database, NDSU Extension Service Ask Extension for answers to commonly asked questions. For most uses, canned tomatoes have a better flavor and texture than frozen tomatoes. Use frozen tomatoes for cooking. Tomato sauces freeze well and are convenient for families who do not want to do home canning.
Whole tomatoes tend to crack and collapse completely when they thaw.
Put 2 slices of moisture vapor-proof paper between them. Package in rigid airtight containers and fast freeze. Or, put slices on a tray or pan and freeze for two hours or until they are crisp on the outside. Don't leave slices unwrapped in the freezer for very long or they will dry out. Frozen sliced tomatoes are one product you should eat in a near-frozen state.