How long can you freeze spaghetti sauce?

Spaghetti sauce can be frozen for up to three months. To freeze spaghetti sauce, let the sauce cool completely. Then, transfer the sauce to a freezer-safe container, leaving at least 1 inch of headspace. Seal the container and freeze. When you're ready to use the sauce, thaw it overnight in the refrigerator or at room temperature for several hours. You can also thaw the sauce in the microwave on the defrost setting. Be sure to stir the sauce occasionally as it thaws. Once thawed, the sauce can be reheated over low heat on the stovetop until warm.