Alfredo sauce can last in the fridge for about 3 to 4 days. This assumes that the sauce has been stored properly in an airtight container and refrigerated at a temperature of 40°F (4°C) or below. It's essential to note that the clock starts ticking from the time the sauce is prepared, not from the time the ingredients were purchased.
If you have leftover Alfredo sauce and you're unsure whether it's still safe to consume, follow the general rule: "When in doubt, throw it out." It's better to be cautious with perishable food items to avoid the risk of foodborne illnesses.
If you want to keep Alfredo sauce for a more extended period, consider freezing it. Properly stored in the freezer, Alfredo sauce can last for about 2 to 3 months. To freeze it, transfer the sauce to an airtight container or freezer bag, leaving some room for expansion, and label it with the date before placing it in the freezer.
Remember to always use your senses (look, smell, and taste) as a final check before consuming any food, especially if it has been in the fridge for several days or if there are any doubts about its freshness or safety. If you notice any signs of spoilage, such as an off odor, mold, or unusual texture, discard the sauce immediately.