Inactive Yeast
What is Inactive Yeast?
Inactive yeast, also known as nutritional yeast, is a deactivated strain of Saccharomyces cerevisiae, a type of fungus. It is grown on molasses or other sugar sources and then dried and processed to remove its leavening properties. This process results in a deactivated yeast with a savoury, cheesy flavour.
Is Inactive Yeast vegan?
Inactive Yeast is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Inactive Yeast gluten-free?
It does not contain gluten.
Is Inactive Yeast a major allergen?
Inactive yeast is not derived from any of the 14 major allergens that require mandatory labelling in the UK.
What is Inactive Yeast used for?
Inactive yeast is primarily used as a flavour enhancer, imparting a cheesy, umami taste to foods.
Is Inactive Yeast safe?
Inactive yeast is not considered a food additive and does not have an E-number.
Why it's used
Inactive yeast is primarily used as a flavour enhancer, imparting a cheesy, umami taste to foods. It is often added to vegan and vegetarian products as a cheese substitute, and can be found in snacks, sauces, and baked goods. Its flavour profile makes it a versatile ingredient for adding depth and richness.
Health notes
Inactive yeast is not considered a food additive and does not have an E-number. It is a source of B vitamins and protein. The UK's Food Standards Agency (FSA) and Food Standards Scotland (FSS) do not set specific regulatory limits for inactive yeast as a food ingredient. Evidence does not suggest adverse health effects from typical consumption levels.
Allergen info
Inactive yeast is not derived from any of the 14 major allergens that require mandatory labelling in the UK. It does not contain gluten.
Foods that contain Inactive Yeast
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