Expiration & Storage Tips
When does peppermint extract expire?
Peppermint extract generally has an indefinite shelf life when stored properly, no matter if it's opened or not. However, it might lose its potency over time and its flavor can deteriorate after 3-4 years. For homemade peppermint extract, as long as you're using pure alcohol, such as vodka, it should also last indefinitely, though the same rules apply about losing its potency over time. Freezing is not a common practice, but if you decide to do so, expect changes in the texture that might affect the flavor delivery in your recipes.
How do you tell if peppermint extract is bad?
The good news is that it's almost impossible for peppermint extract to go bad, thanks to its high alcohol content. But if it's stored improperly, it might degrade. If the smell of the extract is faint or it's lost its refreshing, minty scent, then it's likely lost its flavor. Furthermore, if you see a change in color or consistency, it could be a sign that the extract has been contaminated, and it'd be safe to throw it out.
Tips for storing peppermint extract to extend shelf life
• Store your peppermint extract in a cool, dark place such as a pantry or cupboard. Avoid storage near a stove or oven because heat can cause the flavor to degrade faster.
• Keep the bottle tightly sealed when not in use to maintain the potency of the extract.
• If you choose to make your own extract at home, you should ensure all the utensils and bottles used are cleaned thoroughly to avoid any chance of contamination.
• Avoid using the extract directly from the bottle when cooking, as steam from your food can get into the bottle and dilute your extract.