Stinging Nettle Tincture Although stinging nettle is known to many mainly for its itchy stings, it is an amazing medicinal and edible plant. Nettles are rich in iron, potassium, calcium, manganese, and trace minerals. Cut fresh or shred dried plants Put them in a clean container Use a vodka that has 50% alcohol content (also known as 100 proof) Add the alcohol at a 2:1 ratio (i.e. 2 cups of vodka to 1 cup of plant materials)