How Long Does Spaghetti Sauce Keep Once Opened?

Not long. If you keep it more than two days you could very likely develop salmonella poisoning. This happened to me and the Dr. told me it was directly related to the sauce, only 2 days after opening.

Usually spagetti sauce will keep a week in the fridge. When I have extra spagetti sauce, I put it into indiviual serving containers and freeze. They are easy to thaw out and can be ready for a snack, a quick lunch or if extra guests come over we have plenty of spagetti sauce for everyone.

Usually spagetti sauce will keep a week in the fridge. When I have extra spagetti sauce, I put it into indiviual serving containers and freeze. They are easy to thaw out and can be ready for a snack, a quick lunch or if extra guests come over we have plenty of spagetti sauce for everyone.

I keep things for a week and then out it goes.

I have frequently called the manufacturer & from the code on the jar they can tell you. Also if you do a search on the internet you can find many lists of things & how long to keep them on the shelf & in the fridge. I have a couple I keep handy.

It wasn't recently opened so I don't want to freeze it until I know how long it'll keep in the fridge. Good idea for next time, though.

Put the cover back on it and put it in the freezer. It'll last a long time frozen.

Good question... I have found many a jar of sauce or salsa growing pretty green fuzz in my fridge at the shore... a light just came on over my head,,, from now on I'll pour the rest of the jar into a container or freezer bag and freeze till I need it again... Anita from NJ