l3lackEyedAngels
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- Apr 28, 2006
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I've got a two piece airlock on my primary fermenter which contains an American Pale Ale. I'm about eight days in. Fermentation is slow. There is krausen (I had to pull out the airlock and peek since I use plastic buckets), but what is really interesting me is that there seems to be negative pressure within. Water is going up the bell shaped piece, approaching the entrance to the fermenter. I don't think that any water has gotten into the fermenter because the water level around the bell falls below the rim of the bell before the water within the bell can pour into the entrance. However, it seems very possible to me that outside air is getting in.
I am not worried about infection. I am a rebel. I am damn curious as to what is going on, though. Why would the pressure in the fermenter be lower than ambient? Global warming? Gremlins? I'll be racking to secondary tomorrow. Even if the phenomenon goes away, my perturbation will continue. Please, enlighten me!
Here's the recipe:
8 lbs Pale Malt
1 lb Vienna Malt
1 lb CaraHell Malt
Mash at 150F 1 hour; 1 qt. water/lb grain
Sparge 170F water; collect 6 gallons of sweet wort.
Boil: 60 minutes
Hops:
Nugget at 60 minutes
Perle at 15 minutes (add Irish moss and wort chiller)
Cascade at 2 minutes
Chill to <=80F, Pitch Wyeast 1056 (recovered from previous batch)
I managed to rack 4.5 gallons into the fermenter.
I am not worried about infection. I am a rebel. I am damn curious as to what is going on, though. Why would the pressure in the fermenter be lower than ambient? Global warming? Gremlins? I'll be racking to secondary tomorrow. Even if the phenomenon goes away, my perturbation will continue. Please, enlighten me!
Here's the recipe:
8 lbs Pale Malt
1 lb Vienna Malt
1 lb CaraHell Malt
Mash at 150F 1 hour; 1 qt. water/lb grain
Sparge 170F water; collect 6 gallons of sweet wort.
Boil: 60 minutes
Hops:
Nugget at 60 minutes
Perle at 15 minutes (add Irish moss and wort chiller)
Cascade at 2 minutes
Chill to <=80F, Pitch Wyeast 1056 (recovered from previous batch)
I managed to rack 4.5 gallons into the fermenter.