Chemistry of BeerReview 21.What is a lauter tun? How is it used? Vessel with false bottom. Used for wart separation by gravity.2.Describe the action of a mash filter. Mash enters chambers. Wort driven through filter pad by pressure.3.What does boiling accomplish? Isomerize bitter compounds, extract hope bitter compounds into wort, kill undesired microbes, remove off flavors, coagulate proteins, introduce malty flavors, darken wort.4.What is a calandria? Heat exchanger to boil wort.5.What is the bitter compound from hops? Isohumulone is the major one.6.What is hot break? Stuff, mostly proteins, coagulated during the boil.7.How does a chiller work? The chiller has parallel plates defining narrow channels. Hot wort goes in one direction through very other channel and coolant goes in the opposite direction through the remaining channels.8.What is a whirlpool? How is it used? Vessel in which wort is made to go in a circle. Solids go to center and fall to bottom. It is used to separate hop particles and hot break from boiled wort.