How long does alfredo sauce last after opening?
How to Make Alfredo Sauce
5 daysAlfredo is considered to be a cream based sauce. Unopened and kept in the pantry, it can last around 6–8 months. However, if you have opened the jar, or used it and have mixed it with pasta, it can last approximately up to a week in the fridge, but best to throw out after 4–5 days if possible.