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Fermentation lock on homebrewing fermentation vesselA 25 L (6+1⁄2 US gal) glass carboy acting as a fermentation vessel for beer. It is fitted with a fermentation lock.
A fermentation lock or fermentation airlock is a device used in beer brewing and wine making that allows carbon dioxide released during fermentation to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation.
There are two main designs for the fermentation lock. These designs work when half filled with water. When the pressure of the gas inside the fermentation vessel exceeds the prevailing atmospheric pressure the gas will push its way through the water as individual bubbles into the outside air. A sanitizing solution, sulphur dioxide[1] or alcohol is sometimes placed in the fermentation lock to prevent contamination of the beverage in case the water is inadvertently drawn into the fermenter.
This device may take the form of a tube connected to the headspace of the fermenting vessel into a tub of sanitized liquid or a simpler device mounted directly on top of the fermentation vessel.
Currently, a popular fermentation lock that mounts on top of the fermentation vessel is the three-piece fermentation lock. Other models contain three bulbous chambers allowing for a broader range of pressure equalization. These bulbous fermentation locks were generally made of hand blown glass and are nowadays often made of clear plastic.
The use of perforated rubber balloons offers an easy and inexpensive alternative to conventional airlocks: as used primarily in homebrewing, the balloon is stretched over the orifice of the fermentation vessel and, if necessary, tightened with rubber bands. The balloon is then perforated with a needle. These punctures, while not completely airtight, sufficiently protect the vessel's contents from contamination and allow the gases produced by fermentation to evacuate from the vessel as the pressure rises and the balloon inflates.
^"E220 Schwefeldioxid". Zusatzstoffe Online (in German). Die Verbraucher Initiative e.V. Archived from the original on 2017-07-04. Retrieved 2017-07-04.
A fermentationlock or fermentation airlock is a device used in beer brewing and wine making that allows carbon dioxide released during fermentation to...
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levels of water, as in a canal Lock (weapons guidance), missile navigation system's target acquisition fix Fermentationlock, a device in beer and wine making...
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scale for personal, non-commercial purposes. Supplies, such as kits and fermentation tanks, can be purchased locally at specialty stores or online. Beer was...
17–20%. To make plain crude kilju, the must weight must be zero: A fermentationlock should indicate less than a bubble per minute. Then the sugar reserve...
environments. "Airlock" is sometimes written as air-lock or air lock, or abbreviated to just lock. An airlock consists of a chamber with two airtight...
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to exclude moisture from reactions for less demanding applications Fermentationlock Rob Toreki. "Bubblers". The Glassware Gallery. "Mercury MSDS". J....
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bag, hot running water, and a towel or sock to conceal the pulp during fermentation. The end result has been colorfully described as a "bile-flavored wine...
redeem their drinks during the lock-in so no drinks are technically sold after closing time. The origin of the British lock-in was a reaction to 1915 changes...
6 September 2021. Dominy, Nathaniel J. (2004). "Fruits, Fingers, and Fermentation: The Sensory Cues Available to Foraging Primates". Integrative and Comparative...
methyl red test, which determines if a microorganism performs mixed-acid fermentation. S. marcescens results in a negative test. Another determination of S...
adaptation to the low quality grass diet with the development of foregut fermentation. The most numerous early macropods, the Balbaridae and the Bulungamayinae...
disrupted when the guest judge, a well-known wine critic, is found dead in a fermentation vat. 3 3 "Playing the Lie" Michael Hurst James Griffin 12 October 2014 (2014-10-12)...
7 September 2023. Retrieved 22 January 2015. Lock 2001, p. 607 Lock 2001, p. 651 Lock 2001, p. 652 Lock 2001, pp. 651–652 Brett, F. H. (1840). A practical...
connected to many APIs as specialized subtask-solvers (16 Feb), precision fermentation-derived beta-lactoglobulin is released as a substitute for whey protein...
Annie Wild (English) Ru's sister and a researcher whose interest in the fermentation process made her move to the village. She brought to the farm its first...
SATORA and T. TUSZYNSKI (2005). "Biodiversity of Yeasts During Plum Fermentation" (PDF). Food Technol. Biotechnol. 43 (3): 277–282.[permanent dead link]...
saved from a fire just behind the square in Lynchburg, and is now under lock and key at the Farmers Bank in Lynchburg, the bank Jack Daniel founded in...