Final answer:
Brettanomyces is a wild yeast used in the production of sour beers, imparting unique flavors due to its fermentation process.
Step-by-step explanation:
One of the wild yeasts used when making sour beers is Brettanomyces. This particular yeast is known for its ability to contribute to the unique flavors and aromas associated with sour beers, which is a result of its fermentation process under anaerobic conditions, converting sugars into carbon dioxide (CO2) and ethyl alcohol. Brettanomyces, along with other microorganisms like Lactobacillus, plays a crucial role in the beer's sour and complex characteristics.
One of the wild yeast used in making sour beers is Brettanomyces. Fermentation of grains and fruits to produce beer and wine has been practiced by humans for a long time. Wild yeasts are acquired from the environment and used to ferment sugars into alcohol under anaerobic conditions. Brettanomyces is a type of wild yeast that contributes to the sour flavors and aromas in sour beers.