Zinc Sulfate is an Inorganic Product. Zinc Sulfate Heptahydrate is used as a dietary supplement to treat zinc deficiency and to prevent the condition in those at high risk.Side effects of excess supplementation may include abdominal pain, vomiting, headache, and tiredness. The most common form includes water of crystallization as the heptahydrate,with the formula ZnSO4•7H2O. Zinc Sulfate Monohydrate was historically known as "white vitriol". Manufacturers Zinc Sulfate and Pvc Resin its hydrates are colourless solids. Zinc Sulfate Feed Grade can be used to supplement zinc in Titanium Dioxide the brewing process. Zinc is a necessary nutrient for optimal yeast health and performance, although it is not a necessary supplement for low-gravity beers, as the grains commonly used in brewing already provide adequate zinc. It is a more common practice when pushing yeast to their limit by increasing alcohol content beyond their comfort zone. Before modern stainless steel, brew Kettles, fermenting vessels and after wood, zinc was slowly leached by the use of copper kettles.