Ingredient

Deionized Water

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Source
Not animal-derived
Allergen
No
Role in food
Deionized water is used in food production to ensure purity and prevent unwanted chemical …

What it is

Deionized water is purified water that has had most of its mineral ions removed. This is done by passing water through ion-exchange resins. The process removes minerals like sodium, calcium, and magnesium, resulting in highly pure water.

Why it's used

Deionized water is used in food production to ensure purity and prevent unwanted chemical reactions. It is often used in beverages, baked goods, and processed fruits and vegetables where a neutral water base is desired. Its lack of dissolved minerals makes it a consistent ingredient.

Health notes

Deionized water is generally recognized as safe (GRAS) by the FDA for use in food. It is essentially pure H2O and does not contain minerals or other substances that would typically be a health concern at normal consumption levels. International bodies like JECFA have evaluated water, but deionized water specifically is not usually singled out for separate evaluation beyond its purity standards.

Allergen info

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

Products containing Deionized Water

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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.