When Does Krausen Fall?

Usually at the end of fermentation the krausen flocculates, or falls, to the bottom of the fermenter and the beer above becomes more and more clear. Occasionally the krausen will not fall (sometimes even after 3 weeks).

How long does krausen take to fall?

It can take anywhere from one to two weeks before fermentation is complete; if you have done everything right in the process, it should only be a matter of time. The development of krausen is a sign that you have happy yeast.

Should I remove krausen?

It is often recommended to remove the krausen during fermentation for a “smooth bitterness.” Some brewers accomplish this through the use of a blow-off tube and a small headspace in the fermentation vessel. Many brewers do nothing about krausen, allowing most of it to fall back into the beer.