Expiration & Storage Tips
When does cream of tartar expire?
Cream of tartar is one of those ingredients that essentially has an unlimited shelf life, as it doesn't spoil or go bad. Even after years, it typically remains just as potent and effective for your baking needs. Unlike baking powder or soda, it doesn't lose effectiveness over time and therefore doesn't have a 'best by' or 'use-by' date. However, if it's been exposed to too much moist or humidity, it may clump up, though this doesn't affect its functionality.
How do you tell if cream of tartar is bad?
With cream of tartar, it's difficult to tell if it's gone 'bad' because it doesn't actually spoil. However, if it's been compromised by water or humidity and clumps up, you can break it down with a fork or sift it. Any presence of mold, an off-smell, or changes in color, which are highly unusual, could indicate contamination and it's probably best to replace it.
Tips for storing cream of tartar to extend shelf life
• Store your cream of tartar in a cool, dry area away from direct sunlight.
• Make sure the lid or cap is always sealed tightly to prevent moisture from coming in contact.
• You can also store it in the refrigerator, ensuring to keep it well-sealed to avoid moisture.
• Should it clump due to slight moisture exposure, simply break it down before you use it, no harm done. Remember, clumping doesn't indicate spoiling!