Alfredo sauce can last a long time, but it is so yummy that it never gets the chance. To keep it for a long time, you have to freeze it. It will last for months if frozen, but you will have to stir well to keep it from curdling when you reheat it. Refrigerated Alfredo sauce lasts only 3 to 4 days. Make sure the container is airtight for storage, mold loves sauces as much as humans do!

My mom made cheep wine because there were grapes left in the back of the garage fridge for a couple years because we never used it. It was more like grape vinegar.