What is the brew kettle used for?
The brew kettle is used to boil the sweet wort with the hops, and sometimes other ingredients such as herbs or sugars. This stage is where many chemical and technical reactions take place, and where important decisions about the flavor, color, and aroma of the beer are made. At the end of the boil, the hopped wort settles to clarify in a vessel called a whirlpool, where the solid particles in the wort are separated out.
Originally published in the Craft Beer Club's Micro Brew News, Lakefront Brewery, Inc. featured in 2015.