CONTINUOUS STILL

column still, also called a continuous stillpatent still or Coffey still, is a variety of still consisting of two columns invented in 1826 by Robert Stein, a Clackmannanshire distiller and first used at the Cameron Bridge Grain Distillery. The design was enhanced and patented in 1831 by an IrishmanAeneas Coffey. The first column (called the analyzer) has steam rising and wash descending through several levels. The second column (called the rectifier) carries the alcohol from the wash where it circulates until it can condense at the required strength.  



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