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Old 06-14-2008, 12:10 AM   #1
Apr 2008
Chicago Area
Posts: 3,739
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I am about to brew a Raspberry Wheat Ale, and the recipe suggests using a "single stage or Blow-by method".

I am assuming that single stage is not racking to a secondary, but what is "Blow-by" ? Are they the same ? Am I correct about single stage ?

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Old 06-14-2008, 12:50 AM   #2
Reno Homebrewer
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Dec 2007
Reno, NV
Posts: 183

Blow-by is when the explosion in one of the cylinders of your engine gets past the rings, instead of staying contained in the cylinder.

Maybe the recipe meant to say blow-off, which is a good idea if you are using a Carboy for primary fermentation. A blow-off tube replaces the airlock, and you put the other end in a pot or bowl filled with clean water.

Wheat beers should not be racked to a clearing vessel, since they are supposed to be cloudy.
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Old 06-14-2008, 12:54 AM   #3
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Jul 2006
Posts: 14,237
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I think the intended wording is, "single stage fermentation with a blow off tube."

Wheat beers tend to be very active during initial fermentation, sometimes causing the krausen to clog an airlock. A blow off tube like Reno suggests is the solution.

Single stage fermentation means exactly what you think it does.
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