Expiration & Storage Tips
When does peanut butter expire?
Unopened, a jar of store-bought peanut butter can last up to a year past its 'best by' date. Once opened, it's best to consume it within 2-3 months if stored in the pantry. Storing an opened jar in the refrigerator can extend its life to 6-9 months. Natural peanut butter, which lacks the preservatives found in traditional versions, has a shorter shelf life and should be eaten within 2-3 weeks of opening. Freezing is not commonly done because it can alter the texture and taste, but if you choose to freeze peanut butter, it can keep indefinitely. Thaw it in the fridge for a day before using.
How do you tell if peanut butter is bad?
Spoiled peanut butter may exhibit changes in texture, smell, and color. It may become dry or hardened, or develop an off-putting or rancid smell. The color may darken or patches of mold may appear. If any of these signs are evident, it's best to throw it away to avoid potential food-borne illnesses.
Tips for storing peanut butter to extend shelf life
• Store unopened jars of peanut butter in a cool, dry place, like a pantry or kitchen cabinet.
• Once opened, keep the jar tightly sealed when not in use to prevent it from drying out or spoiling.
• Although not necessary for all types, refrigerating opened jars can extend their shelf life. This is especially beneficial for natural or organic peanut butter, which tends to spoil faster.
• To prevent contamination, always use clean utensils when scooping out peanut butter and avoid double-dipping.
• If you choose to freeze peanut butter, store it in an airtight container and defrost in the refrigerator.