Onion Tincture & Alcohol-Free Extract

Onion (Allium cepa) is a biennial bulb of the amaryllis family, Amaryllidaceae, that was domesticated in Central Asia so long ago that no wild population is known, and is now grown on every continent. It sends up hollow, blue-green tubular leaves 40-60 cm tall and, in its second year, a stout stalk topped with a globe of small white or greenish flowers. The bulb is built of fleshy, concentric scales in a papery brown, yellow, red or white skin, and when cut it releases pungent sulfur compounds that sting the eyes. We extract the dried bulb.