produces high strength, very pure alcohol from a variety of cereals in a continuous process, usually imparting less flavour that a pot still. See grain whisky.

Also referred to as a continuous still or Coffey still. Consisting of 2 columns, the first being the rectifier and the second being the analyser. Produces high strength, pure alcohol.

a double still with continuous distillation for AOC Calvados and Calvados Domfrontais.

see Coffey still.

A column still also called a continuous still, patent still, or coffey still is a variety of still that consists of two columns invented by the Irish man Aeneas Coffey. The first, called the rectifier, has steam rising and wash descending through several levels. The second column called the analyzer carries the alcohol from the wash where it circulates until it can condense at the required strength.