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Old 09-01-2009, 02:30 AM   #1
BrewMonsterHead
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Default Fermentation issue

I used a English Ale Yeast WPL002 on an export milk stout with a gravity of 1.081. It started rapidly after 12 hours and bubbled like a machine gun cycling shells for 48 hours. Now it is bubbling once per every 5.8 seconds. Is this normal? How long should I leave it in primary

BTW, added lactose in boil.



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Old 09-01-2009, 02:38 AM   #2
annasdadhockey
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Totally normal. It will be done when it's done. By that I mean when your hydrometer readings remain constant over a few days, it should be finished. If your readings seem high, but have leveled off, you may need to rouse the yeast a bit.(or even repitch)



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Old 09-01-2009, 02:40 AM   #3
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How do you "rouse the yeast"

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Old 09-01-2009, 03:36 AM   #4
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Gently swirl the fermentor for a minute or two. Don't shake, just swirl. It'll kick up the yeast cake and get them going again if need be. You'll likely get a decent amount of off gassing when you first swirl, so don't let that fool you into thinking its activity so soon.

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