CARBOY

A 'carboy' or 'demijohn' is a glass or plastic vessel that is often used in fermenting beverages such as wine, mead, and beer. Usually it is fitted with a rubber stopper and a fermentation lock to prevent bacteria from entering during the fermentation process.
During the homebrewing process, a primary carboy is used for fermentation. Once primary fermentation is complete, the beer is either transferred to a secondary carboy for conditioning or it can be transferred directly to bottles for conditioning. (This process of transferring is usually called racking.)
Polypropylene carboys are also commonly used in laboratories to transfer purified water. They are typically filled at the top and have a spigot at the bottom for dispensing.
The word carboy is from the Persian ''qarabah'', from Arabic ''qarraba'', "big jug".
Carboys come in various volumes ranging from 1 gallon to 6.5 gallons (4 to 25 litres). The term carboy used on its own will generally refer to a 5 gallon carboy, unless otherwise noted. A one gallon carboy is usually called a 'jug'. A 15 gallon carboy is often called a 'demijohn' (in the Philippines, "dama juana").^[1] "Demijohn" is an old word that formerly referred to any glass vessel with a large body and small neck, enclosed in wickerwork. The word is said to derive from the name of a Persian town, Damaghan, but this is not supported by any historical evidence. According to ''The Oxford English Dictionary'' the word comes from the French ''dame-jeanne'', literally "Lady Jane", as a popular appellation. This is in accordance with the historical evidence at present known, since the word occurred initially in French in the 17th century, and no earlier trace of it has been found elsewhere.
In Britain, 'demijohn' refers to a one-gallon glass brewing vessel.
In Southeast U.S. slang, a demijohn jug, of any size, is referered to as a 'jimmyjohn'.
It may also be referred to as a carboil, or carble. This is a common mistake made by beginners into homebrewing, noted by many homebrew store professionals.

Contents

References

See also

External links

References

1. Ocampo, Ambeth R. (August 9, 2006) Philippine Daily Inquirer ''Tanduay.'' Page 13.

See also

★ Conrack

★ Fermentation (food)

External links

★ Carboy Information

★ What's Wrong With a Plastic Carboy?