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Tips. 1  Horseradish roots have oils that produce enzymes when crushed. This is what gives horseradish sauce its kick, and is neutralized when vinegar is added to the mixture. 2  Store horseradish in a tightly closed container for up to 6 weeks. You can also store it in the freezer for up to 8 months.
Horseradish (Armoracia rusticana, syn. Cochlearia armoracia) is a perennial plant of the Brassicaceae family (which also includes mustard, wasabi, broccoli, and cabbage). The plant is probably native to southeastern Europe and western Asia. It is now popular around the world.It grows up to 1.5 meters (4.9 feet) tall, and is cultivated primarily for its large, white, tapered root. The intact horseradish root has hardly any aroma.When cut or grated, however, enzymes from the now-broken plant cells break down sinigrin (a glucosinolate) to produce allyl isothiocyanate (mustard oil), which irritates the mucous membranes of the sinuses and eyes.he intact horseradish root has hardly any aroma. When cut or grated, however, enzymes from the now-broken plant cells break down sinigrin (a glucosinolate) to produce allyl isothiocyanate (mustard oil), which irritates the mucous membranes of the sinuses and eyes.