carboy

. A carboy, also known as a demijohn, is a rigid container with a typical capacity of . Carboys are primarily used for transporting liquids, often drinking water or chemicals. They are also used for in-home fermentation of beverages, often beer or wine.

. A carboy, also known as a demijohn, is a rigid container with a typical capacity of . Carboys are primarily used for transporting liquids, often drinking water or chemicals. They are also used for in-home fermentation of beverages, often beer or wine.

Size

Carboy volumes range from . The term carboy itself usually indicates a size, unless otherwise noted. A carboy is sometimes called a jug. A carboy is normally called a demijohn (in the Philippines, dama juana ). In Britain, "demijohn" refers to a glass brewing vessel.

Brewing

In brewing, a carboy or demijohn is a glass or plastic vessel used in fermenting beverages such as wine, mead, cider, perry, and beer. It is usually fitted with a rubber stopper and a fermentation lock to prevent bacteria and oxygen 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.)

Laboratory

In modern laboratories, carboys are usually made of plastic, though traditionally they were (and still are in many university settings) made of ferric glass or other shatter-resistant glasses immune to acid corrosion or halide staining common in older plastic formulations. They are used for storing large quantities of liquids, such as solvents or deionised water. In these applications, a tap may be included for dispensing. Carboys are also used to collect and store waste solvents. Collecting waste solvents in plastic carboys is preferable to reusing glass Winchesters due to the lesser chance of breakage if a solution is placed in an incorrectly labeled carboy. 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.

See also

Amphora – another large container used from 6000 BCE to the present, mostly for wine Fermentation (food) Jerrycan – another large-sized fluid container

References

External links

Big Bottles Big History: Demijohns and Carboys

Text derived from https://en.wikipedia.org/w/index.php?oldid=1369371147 under CC BY-SA 4.0; modifications have been made.