How long can you keep open jar of spaghetti sauce in the fridge?

Answer by  oroberts (24)

A general rule for a used jar of spaghetti sauce is five days in the refrigerator. However, leaving it uncovered in the fridge can significantly reduce the sauce's duration. It may only last a day or two in that case. Exposure to air usually diminishes the shelf life of food. The temperature of the fridge is another factor to consider.

Answer by  Heather726 (257)

I've kept spaghetti sauce in the fridge for at least two to three weeks. As long as there's no fuzz on the lid or rim it's okay, just heat thoroughly.