m (New page: Category:Beer Category:Troubleshooting Category:Flavor problems Category:Aroma problems '''Sour''' or '''acidic''' flavor in beer are nearly always caused by bacterial inf...) |
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Revision as of 18:12, 10 October 2007
Sour or acidic flavor in beer are nearly always caused by bacterial infection.
There are two major types of bacteria used for souring beer. Lactic acid gives a smooth sourness that can be reminiscent of yogurt. Acetic acid gives a sharper, tangier bitterness. See the individual entries for each type of acid for more information.