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Are top-fermenting and bottom-fermenting yeasts perfect substitutes for each other, or are they each better suited to different situations?


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Kinnek Knowledge Team

Generally, top-fermenting yeasts are used more in the making of ales, and bottom-fermenting yeasts are used more in lager production.  While both types of yeast have to permeate the worth and consume the sugars during the fermentation process (thereby producing carbon dioxide and alcohol), top-fermenting yeasts ferment at higher temperatures (10 deg Celsius - 25 deg Celsius) than bottom-fermenting yeasts (7 deg Celsius - 15 deg Celsius).  Top-fermenting yeasts usually generate a thicker foam head at the surface when compared with bottom-fermenting yeasts.

Oct 15, 2013

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