Once the barley grain is threshed from the chaff, the grain is sent to large offsite malting houses, arriving at the distillery as malted barley. The malt is ground, then added to the mash tun and soaked in hot spring water. To make anCnoc Whisky, Knockdhu Distillery uses giant copper stills for the process of vaporisation and condensation. The nutritious spent grains are then carted off to be used as fodder for Aberdeen cattle.