Does Nacho Cheese Need to Be Refrigerated?

Store-bought nacho cheese has preservatives that keep it fresh in the fridge for up to 4 days. Is nacho cheese pasteurized? In a way, yes, as it is made from pasteurized cheeses like cheddar or American cheese. However, the homemade nacho cheese sauce can only hold up for 3-4 days when refrigerated.

Can nacho cheese be left out?

Though it's unlikely you'll face food safety issues if you leave cheese at room temperature for too long, for best quality, you should return it to the fridge after about two hours.

Does canned nacho cheese have to be refrigerated?

Store-bought nacho cheese sauce will last up to four weeks in the refrigerator, while homemade cheese sauce will last only about four days. Store it in an airtight container to keep out moisture and contaminants.