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Horseradish loses its bite in hot liquid

Heat deactivates the enzyme that creates its volatile heat

Freshly grated horseradish is fierce because myrosinase converts sinigrin into allyl isothiocyanate within minutes of the root being cut. That enzyme works best at room temperature and is destroyed by heat, so adding the root to a simmering sauce tempers it considerably. Vinegar stops the reaction, which is why prepared horseradish is packed in acid.

Where this comes from

Encyclopaedia Britannica

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Tags: horseradish, enzymes, heat

Horseradish loses its bite in hot liquid: the short answers

Where does this come from, and can I check it?
Heat deactivates the enzyme that creates its volatile heat. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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