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Lager fermentation

Auldyin

Master Brewer
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Hi Folks,
I have just made a Mexican Cervasa. Used American lager Yyeast 2035 pitched at 21C and allowed to begin fermentation (bubbles).
Transferred to the fridge where it is held at a constant 12C. How long should this be in the fridge at this temperature? There are no real signs of fermentation activity?
Thanks
 

Oddball

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Check the gravity a few days in a row, if it is down around where the expected FG is and it doesn't change then it's done
 
K

KellerBrauer

I will typically watch my airlock carefully - particularly after the first week. Once the bubbles begin to slow, I actually begin to time the bubble with a stopwatch. When the bubbles get to about a 60 second span, I'll check the SG, it should be close to predicted. Wait a day or two and check again.  Make sure it is steady and not changing for several days.  Then I turn off the fridge, open the door and let my brew warm up for the diasetyl rest for about 3 days.  Then move on to the next stepped in your process.

Hope this helps.
 
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