Peanut butter is a great high-protein ingredient to add to many sweet and savory recipes, but given that it’s something you use infrequently you’re probably wondering if peanut butter goes bad. Let’s unpack that and find out.
Quick Answer
According to the National Peanut Board, commercial peanut butter should be stored in the pantry or cupboard and should last 6-24 months if unopened or 2-3 months once opened. After storing in the pantry, you can shift your peanut butter to the refrigerator, extending its life by an additional 3-4 months. Peanut butter is primarily made of peanuts and doesn’t like fluctuating temperatures, so the more stable the environment the longer your peanut butter will last.