04 On the Bridge of Starship Brewery Creek!Gazing into the Mash Lauter Tun. This is where it all takes place. Hot water is mixed with the crushed malt and allowed to steep for 60 to 120 minutes. Some enzymes convert the starches into a broad range of sugars. Other enzymes break down proteins. The temperature of the water determines what kind of wort you end up with. We have a saying, "Brewers make wort. Yeast makes beer."