Ingredient

Dehydrated onion

Source
Not animal-derived
Allergen
No
Role in food
Dehydrated onion is used to impart a concentrated onion flavour to a wide range …

What is Dehydrated onion?

Dehydrated onion is prepared by removing most of the water content from fresh onions, typically through air drying or freeze-drying. This process concentrates the onion's flavour and extends its shelf life, making it a convenient ingredient for various food applications.

Is Dehydrated onion vegan?

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

Is Dehydrated onion a major allergen?

Onion is not one of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Dehydrated onion used for?

Dehydrated onion is used to impart a concentrated onion flavour to a wide range of foods.

Is Dehydrated onion safe?

Dehydrated onion is considered a food ingredient rather than a food additive and is not assigned an E-number.

Why it's used

Dehydrated onion is used to impart a concentrated onion flavour to a wide range of foods. It acts as a flavour enhancer and is commonly found in dry mixes like stuffing and soup bases, spice blends such as onion salt, and processed snacks like potato crisps.

Health notes

Dehydrated onion is considered a food ingredient rather than a food additive and is not assigned an E-number. It is a source of dietary fibre and various nutrients found in fresh onions. Regulatory bodies like EFSA have evaluated the safety of onion as a foodstuff. There are no widespread controversies regarding its consumption at typical dietary levels.

Allergen info

Onion is not one of the 14 major allergens that UK law requires to be emphasised on food labels. Not a major allergen.

Foods that contain Dehydrated onion

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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: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.