Changes

A '''clean beer''' is any beer that is not your wild beer; in other words your typical ale or lager.

When brewing sour beer, there are a few more players to the “yeast” side of the ingredients list. In addition to ''Saccharomyces'' or “Sacch”, in wild beer brewing the brewer is often dealing with ''Brettanomyces'', which is another genus of yeast, and ''Lactobacillus'' and ''Pediococcus'', which are both bacteria.

''Acetobacter'' and ''enterobacter'' do play a part in some sour fermentations, however they are not often intentionally added.