How long does pesto stay fresh in the refrigerator?

Pesto. You can keep it in there for a good few months. Pouring a little bit of olive or vegetable oil on the top will help keep it longer as it creates a protective barrier.

If the pesto sauce is home cooked with natural added preservatives such as salt and sugar , it will stay fresh for 48 hours in the refregerators. If the sauce has complex commercial preservatives...

Generally left overs should be eaten within 2 to 3 days. A good rule of thumb to remember is: When in doubt, toss it out!

If the new pack is not opened it can last for up to 2 weeks. If the pack is opened, it can last for about a week. That is if this is stored in an airtight container.

If you are referring to salad dressings, commercial products include preservatives and will have an expiration date on the bottle. Home made dressings are good for a couple months. Dressing as in...