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A column still, also called a continuous still, patent still or Coffey still, is a variety of still consisting of two columns. Column stills can produce rectified spirit (95% ABV ). Description
His column still became widely popular in Scotland and the rest of the world outside Ireland, where it is known as the "Coffey still" or "Patent Still". [citation needed] Early Coffey stills produced spirits of about 60% or somewhat higher alcohol by volume concentration but still offered its operators outstanding advantages; its fuel costs ...
A pot still is a type of distillation apparatus or still used to distill flavored liquors such as whisky or cognac, but not rectified spirit because they are poor at separating congeners. Pot stills operate on a batch distillation basis (as opposed to a Coffey or column stills, which operate on a continuous basis).
In 1822, Anthony Perrier developed one of the first continuous stills, and then, in 1826, Robert Stein improved that design to make his patent still. In 1830, Aeneas Coffey got a patent for improving the design even further. [37] Coffey's continuous still may be regarded as the archetype of modern petrochemical units. The French engineer Armand ...
Small batch whiskey should not be confused with pot still distilling (a batch process) that is common for malt whiskey in Scotland and Ireland. The vast majority – and almost all major brands – of American whiskeys are produced from continuous column stills, also known as a Coffey still .
Pot still distillation gives an incomplete separation, but this can be desirable for the flavor of some distilled beverages. If a purer distillate is desired, a reflux still is the most common solution. Reflux stills incorporate a fractionating column, commonly created by filling copper vessels with glass beads to maximize available surface ...
The invention and development of the column still (1826 and 1831) [21] made the distillation of neutral spirits practical, thus enabling the creation of the "London dry" style that evolved later in the 19th century. [22] In tropical British colonies gin was used to mask the bitter flavour of quinine, which was the only effective anti-malarial ...
A Coffey still, installed at the old Tullamore Distillery in 1948, later lay unused outside the then closed Kilbeggan Distillery for several years. There were a number of factors, both internal and external, which led to this decline. However, one of the main turning points was the patenting in 1832 of the Coffey still by Aeneas Coffey