Clarified sweet wort is delivered to the copper (kettle) where it is subjected to a heat treatment. In beers subject to the Reinheitsgebot laws, only hops are added to an all-malt sweet wort boiling. In other countries additional sources of fermentable sugar in the form of liquid sugar syrup adjuncts may be added with the sweet wort. wort and inactivates all malt enzymes The copper boil serves many functions. It sterilises the wort and inactivates all malt enzymes before it is cooled and added t […]