Ingredient · E336(i)

Potassium Bitartarate

Source
Not animal-derived
Allergen
No
Role in food
Potassium bitartrate is commonly used as a leavening agent in baking, often in combination …

What is Potassium Bitartarate?

Potassium bitartrate is a salt of tartaric acid, a naturally occurring acid found in fruits like grapes. It is a byproduct of winemaking, often collected as argol or wine diamonds from the inside of wine barrels. It is then purified and processed for food use.

Is Potassium Bitartarate vegan?

Potassium Bitartarate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Potassium Bitartarate gluten-free?

It does not contain gluten.

Is Potassium Bitartarate a major allergen?

Potassium bitartrate is not derived from any of the nine FDA major allergens.

What is Potassium Bitartarate used for?

Potassium bitartrate is commonly used as a leavening agent in baking, often in combination with baking soda, to help baked goods rise.

Is Potassium Bitartarate safe?

Potassium bitartrate is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

Potassium bitartrate is commonly used as a leavening agent in baking, often in combination with baking soda, to help baked goods rise. It also helps to stabilize egg whites for meringues and prevents sugar from crystallizing in frostings and candies.

Health notes

Potassium bitartrate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of potassium. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated potassium bitartrate and established an acceptable daily intake. Evidence does not suggest adverse health effects at typical dietary intakes.

Allergen info

Potassium bitartrate is not derived from any of the nine FDA major allergens. It does not contain gluten.

Foods that contain Potassium Bitartarate

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.