Mash the grains in 14 quarts of (13 Liters) of water at 152 °F (67°C). Mash out, vorlauf, and then sparge at 170°F (77°C) to collect 6 gallons (23 liters) of wort. Add 2 quarts (1.9 liters) of water and boil 90 minutes, adding hops and Irish moss at times indicated. Cool, aerate, and pitch yeast. Ferment at 68°F (20°C). After Fermentation is complete, bottle or keg as usual