Burton Water Salts
A mixture of gypsum, potassium chloride, and Epsom salts. Burton Water Salts harden water, which helps Irish Moss work better to coagulate haze-producing malt proteins, and the harder water also helps provide a crisper hop character. The magnesium provides a vigorous fermentation, and the salt adds an illusion of body to the finished beer. Use about a teaspoon per 5 gallons.