Ingredient

Fresh Yeast

Source
Not animal-derived
Allergen
No
Role in food
Fresh yeast is a leavening agent, meaning it produces carbon dioxide gas during fermentation. …

What is Fresh Yeast?

Fresh yeast, also known as cake yeast, is a living microorganism, specifically a strain of Saccharomyces cerevisiae. It is grown in a nutrient-rich liquid medium and then pressed into a moist, soft cake. This form is highly active and perishable.

Is Fresh Yeast vegan?

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

Is Fresh Yeast gluten-free?

It does not contain gluten.

Is Fresh Yeast a major allergen?

Fresh yeast is not derived from any of the 9 FDA major allergens.

What is Fresh Yeast used for?

Fresh yeast is a leavening agent, meaning it produces carbon dioxide gas during fermentation.

Is Fresh Yeast safe?

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

Why it's used

Fresh yeast is a leavening agent, meaning it produces carbon dioxide gas during fermentation. This gas causes doughs to rise, giving baked goods like bread, pizza, and pastries their characteristic light and airy texture. It is often used by bakers who prefer its rapid action and distinct flavor profile.

Health notes

Fresh yeast is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of B vitamins and protein. International bodies like JECFA have evaluated yeast and its components. It is not typically associated with adverse health effects when consumed in amounts found in food.

Allergen info

Fresh yeast is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Foods that contain Fresh Yeast

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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.