Real ale is the name coined by the Campaign for Real Ale (CAMRA) for ale that is "brewed from traditional ingredients, matured by secondary fermentation in the container from which it is dispensed, and served without the use of extraneous

carbon dioxide Carbon dioxide is a chemical compound with the chemical formula . It is made up of molecules that each have one carbon atom covalent bond, covalently double bonded to two oxygen atoms. It is found in a gas state at room temperature and at norma ...

Cask and bottle-conditioned beers

Cask and bottle-conditioned beers are referred to as real ale by CAMRA, as both fit its description of beers served from a container in which they have undergone secondary fermentation.

Distinction from filtered beer

The fundamental distinction between real and other ales is that real ale is unfiltered and unpasteurized, leaving its yeast alive and slowly fermentating in bottle or keg. This secondary fermentation continues until the ale is served, allowing it to retain its natural carbonation. In contrast, natural carbonation is removed from standard beer and ale during filtering, requiring them to be artificially re-carbonated (and often very 'gassy'). Real ales are served "bottle conditioned", gravity direct from the cask, or hand pumped. No external pressurization is used. Electric pumps are occasionally seen, especially in the Midlands and

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

. powered by mains water pressure, were the traditional means of dispensing draught beer in Scotland but this method is discontinued.

Cask breather

A cask breather adds low pressure

into the cask to replace the beer as it is drawn off, preventing the admission of ambient air containing oxygen and nitrogen, forestalling spoilage, and thereby extending the beer's saleable life. It does not pressurize the beer like typical of keg beer. Before 2018, CAMRA refused to regard a cask ale kept "fresh" by cask breather as real ale. In 2018, this policy was changed, allowing pubs using cask breathers to be listed in the '' Good Beer Guide''.

CAMRA

The term "real ale" was coined by CAMRA in the 1970s to attract media attention in the U.K. to naturally fermented and served ales at a time when there were very few independent breweries left and most production had gone over to filtered and pasteurised " filtered ales" - "keg beer" - served under carbon dioxide pressure.

Popularity

Cask conditioned ale remains popular within the UK, particularly in traditional pubs. In 2019, 420 million pints were sold in the UK, 13.5% of total pint sales. Described as 'Britain's National Drink', cask ale's 'Britishness' is an important factor in its promotion and consumption.

References

External links

The Directory of UK Real Ale Breweries
- Information on real ale brewers in the UK *CAMRA'
Good Beer Guide
{{Beer styles Beer in the United Kingdom Types of beer Beer culture