Malted barley is barley that has been allowed to germinate (sprout) to a degree and is then dried. This is accomplished industrially by increasing the water content of the seed to 40-45% by soaking it for a period close to 40 hours. The seed is then drained and held at a constant temperature (60 F) for close to 5 days until it starts to sprout. The barley is slowly dried in a kiln at temperatures gradually rising to 122 F for lighter malts and 220 F for darker malts. This kiln drying takes about 30 hours. Finally, the rootlets from the partially germinated seeds are removed.