How Long Does Cooked Tomato Sauce Last In Fridge. How long does homemade tomato sauce last? If you have thawed the sauce in the fridge before cooking, you can keep it there for up to 4 days before you actual head to cook it.
The acid in the tomato will make it last longer than you think esp if you heat the sauce in the cooking process to 180 degrees. For starters, the sauce only contains three ingredients: When properly stored in a can or glass jar, tomato sauce is best for about 2 years unopened in your pantry.