Lauter tun
From Wikipedia, the free encyclopedia
A Lauter Tun is a special container used in all-grain brewing for separating the sweet wort from the spent grains (malted barley etc.). In essence it is simply a large strainer. Can be as simple as a plastic bucket with holes in the bottom or complex as a stainless steel kettle with a specialized straining device attached to a spigot welded into the side of the kettle.
Sparging is the rinsing of the grains with water and is most often conducted in a Lauter Tun.