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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 area. [3] As alcohol boils, condenses, and reboils through the column, the effective number of distillations greatly increases.
During first distillation, the pot still (or "wash still") is filled about two-thirds full of a fermented liquid (or wash) with an alcohol content of about 7–12%. [4] [5] [6] In the case of whiskey distillation, the liquid used is a beer, while in the case of brandy production, it is a base wine. The pot still is then heated so that the ...
4. Alcohol vapour 5. Recycled less volatile components 6. Most volatile components 7. Condenser *Both columns are preheated by steam . 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).
A column still, or a spiral still, can achieve a vapor alcohol content of 95% ABV. Moonshine is usually distilled to 40% ABV, and seldom above 66% based on 48 samples. [ 10 ] For example, conventional pot stills commonly produce 40% ABV, and top out between 60% and 80% ABV after multiple distillations.
Ketel One Vodka is distilled from 100% wheat in copper pot stills (Ketel is Dutch for pot still), filtered over loose charcoal, and rests in tile-lined tanks until ready. Ketel One Vodka is named after the original copper pot still, "Distilleerketel #1." The alcohol content of this spirit is 40% (80 proof (US), 70
The old style of poitín distilling was from a malted barley base for the mash, the same as single malt whiskey or pure pot still whiskey distilled in Ireland. The word poitín stems from the Irish word "pota" for pot; this refers to the small copper pot still used by poitín distillers. [10]