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Pot stills at the Lagavulin Distillery. A pot still is a type of distillation apparatus or still used to distill liquors such as whisky or brandy.In modern (post-1850s) practice, they are not used to produce rectified spirit, because they do not separate congeners from ethanol as effectively as other distillation methods.
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 ...
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For Athenaeus (c. 225 C.E.) it is a bottle or flask. For later chemists it denoted various parts of crude distillation devices. Alembic drawings appear in works of Cleopatra the Alchemist (3rd century C.E.), Zosimos of Panopolis (c. 300 C.E.), and Synesius (c. 373 – c. 414 C.E.). There were alembics with two (dibikos) and three (tribikos ...
Whereas a single pot still charged with wine might yield a vapour enriched to 40–50% alcohol, a column still can achieve a vapour alcohol content of 96%; an azeotropic mixture of alcohol and water. Further enrichment is only possible by absorbing the remaining water using other means, such as hydrophilic chemicals or azeotropic distillation ...
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The term "fire copper" originated from the "brewing copper" or "wort copper" kettles used for brewing. Before the 19th century most distillation was performed from a simple pot still developed in 800 AD by the Arab alchemist Jabir ibn Hayyan .
A bottle of Redbreast 12 Year Old, bearing the older description "Pure pot still". Newer bottles are labelled "Single pot still". Whiskey has been distilled in Ireland since at least the 1400s [10] and most likely as early as the 6th century. [3] Single pot still whiskey emerged as a means of avoiding a tax introduced in 1785 on the use of ...