Question: are sour beers ales or lagers?
Answer: Today's sours are primarily influenced by two types of bacteria and one type of wild yeast. ... The wild yeast in sours is known as Brettanomyces, also known as “Brett.” Unlike Saccharomyces cerevisiae (which makes ales) and Saccharomyces pastorianus (which makes lagers), Brettanomyces has a reputation as a beer ruiner.