Tannin
Also known as: Tannic Acid
ColorantsStabilizersEmulsifiersThickeners
Safety rating
Generally Safe
Eat Away!Generally SafeUse SparinglyAvoid
Purpose and Function
Tannin is a natural polyphenolic compound found in oak bark, grapes, and tea leaves, used as a colorant and stabilizer in winemaking, beverage clarification, and confectionery, contributing astringency and color.
Commonly found in
- —Wine
- —Tea and certain alcoholic beverages
- —Beer and cider (clarification)
Key functions
- —Stabilizes color and flavor
- —Clarifies beverages by removing unwanted particles
- —Contributes astringency
Potential Risks and Side Effects
- 01Strong astringency can cause a drying mouth sensation at high amounts
- 02Can interfere with iron absorption from plant-based sources — a real concern for those with low iron stores or plant-based diets
- 03Rare allergic reactions depending on plant source