The Grainfather G70 - Electric Brewing System. $1,998.98. $1,998. . 98. FREE Shipping. Only 9 left in stock - order soon. Klarstein Maischfest, Beer Brewing Device, Mash Tun, 5-Piece Set, 1000 and 1600 Watts Power, LCD Display and Touch Control Panel, Temperature, Stainless Steel, 30 Liter / 7.9 Gallon. 4.0 out of 5 stars.