Krausen: Blow off tube or Larger Headspace?

Krausen: to blow-off or not to blow-off?

With a large krausen (foamy head) in a fermentation vessel (FV), often the best remedy is to use a blow-off tube into a bottle of sanitizer.

Question: Would it be better to have a sufficient amount of head-space, so that nothing is lost from the FV, allowing all the yeast, wort, flavour, and hops to remain inside the FV? Has anyone noticed any loss of flavour with excessive blow-off, such as the loss of hop profile?

Topic headspace blow-off-tube blow-off krausen homebrew

Category Mac


That's a question that's been debated with no definitive answer. Some say it's better to blow off the braun hefe becasue of the bitterness it might contribute. Others say it's better to use a larger fermenter so you don't lose yeast. There really is no right or wrong answer other than "try it each way and decide for yourself".

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