Dry MillingIn breweries, dry milling is commonly performed by roller mills or hammer mills. If the wort separation involves using a mash tun or lauter tun, roller mills are employed. Hammer mills are largely used for the later generation of mash filters and continuous brewing systems.

Malt crushing is the first step in the craft beer process. The purpose is to increase the contact area between raw materials and water. Although raw material crushing is only a simple physical processing process, it is the first beginning of beer brewing production (the beginning of beer brewing in