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Sour beer
Sour beer is beer which has an intentionally acidic, tart, or sour taste. Sour beer styles include Belgian lambics and Flanders red ale and German Gose and Berliner Weisse.
Unlike modern brewing, which is done in a sanitary environment to guard against the intrusion of wild yeast, historically the starter used from one batch to another usually contained some wild yeast and bacteria. Sours are made by intentionally allowing wild yeast strains or bacteria into the brew, traditionally through the barrels or during the cooling of the wort in a coolship open to the outside air.
The most common microbes used to intentionally sour beer are the bacteria Lactobacillus and Pediococcus, while the fungus Brettanomyces can also add some acidity. Another method for achieving a tart flavor is adding fruit, which directly contributes organic acids such as citric acid. Additionally, acid can be directly added to beer or added by the use of unusually large amounts of acidulated malt.
Depending on the process employed, the uncertainty involved in using wild yeast may cause the beer to take months to ferment and potentially years to mature. However, modern kettle souring methods allow sour beer to be created within a typical timeframe for ales, usually several days.
While any type of beer may be soured, most follow traditional or standardized guidelines.
Beers brewed in the United States utilize yeast and bacteria strains instead of or in addition to standard brewers yeasts. These microflora may be cultured or acquired spontaneously, and the beer may be fermented in a number of different types of brewing vessels. American wild ales tend not to have specific parameters or guidelines stylistically, but instead simply refer to the use of unusual yeasts.
At one time the most popular alcoholic beverage in Berlin, this is a somewhat weaker (usually around 3% abv) beer made sour by use of Lactobacillus bacteria. This type of beer is usually served with flavored syrups to balance the tart flavor.
Flanders red ales are fermented with brewers yeast, then placed into oak barrels to age and mature. Usually, the mature beer is blended with younger beer to adjust the taste for consistency. This is also sometimes referred to as "flemish red".
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Sour beer
Sour beer is beer which has an intentionally acidic, tart, or sour taste. Sour beer styles include Belgian lambics and Flanders red ale and German Gose and Berliner Weisse.
Unlike modern brewing, which is done in a sanitary environment to guard against the intrusion of wild yeast, historically the starter used from one batch to another usually contained some wild yeast and bacteria. Sours are made by intentionally allowing wild yeast strains or bacteria into the brew, traditionally through the barrels or during the cooling of the wort in a coolship open to the outside air.
The most common microbes used to intentionally sour beer are the bacteria Lactobacillus and Pediococcus, while the fungus Brettanomyces can also add some acidity. Another method for achieving a tart flavor is adding fruit, which directly contributes organic acids such as citric acid. Additionally, acid can be directly added to beer or added by the use of unusually large amounts of acidulated malt.
Depending on the process employed, the uncertainty involved in using wild yeast may cause the beer to take months to ferment and potentially years to mature. However, modern kettle souring methods allow sour beer to be created within a typical timeframe for ales, usually several days.
While any type of beer may be soured, most follow traditional or standardized guidelines.
Beers brewed in the United States utilize yeast and bacteria strains instead of or in addition to standard brewers yeasts. These microflora may be cultured or acquired spontaneously, and the beer may be fermented in a number of different types of brewing vessels. American wild ales tend not to have specific parameters or guidelines stylistically, but instead simply refer to the use of unusual yeasts.
At one time the most popular alcoholic beverage in Berlin, this is a somewhat weaker (usually around 3% abv) beer made sour by use of Lactobacillus bacteria. This type of beer is usually served with flavored syrups to balance the tart flavor.
Flanders red ales are fermented with brewers yeast, then placed into oak barrels to age and mature. Usually, the mature beer is blended with younger beer to adjust the taste for consistency. This is also sometimes referred to as "flemish red".