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Lager yeast tempreture?

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kinglindz

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I use lager yeast the little freeze dried packets and they have an optimal performance range which is usually something like 10-15 degrees Celsius (50-60f). I converted an old fridge into a lager fridge with a brewing thermostat so tempreture control isn't an issue. Is it best to have it set as cold as the yeast is recommended? I generally put it mid way I.e. If it's 10-15 degrees I'll set my fridge to 12.5 degrees (54.5f).
 
I go for about 52°F-54°F for the first 3-4 days the. Raise my temp to the mid 60°'s for a diacetyl rest for a week. Then I drop it to 32°-34°F for lagering.
 
I have had yeast go dormant on me before primary just keeping it mid range the whole time. Does diacetyl resting help that? I'd just be worried about going above the recommended temperature and putting unwanted flavour in the beer?
 
Not to worry at that point, but that's why lagers are very important to have a large, healthy pitch, and good oxygenation.
 
I have had yeast go dormant on me before primary just keeping it mid range the whole time. Does diacetyl resting help that? I'd just be worried about going above the recommended temperature and putting unwanted flavour in the beer?


The diacetyl rest at warmer temps is intended to give the yeast time to clean up & eliminate the diacetyl created during the lower temp fermentation. Once this is done the drop to lagering temps pretty much stops any fermentation activity and clears the beer while letting it mature.
 
After primary fermentation per the manufacturer's recommended temp and a D-rest, I usually lager around 45F just because that's what my Keezer is set at.
 
The diacetyl rest at warmer temps is intended to give the yeast time to clean up & eliminate the diacetyl created during the lower temp fermentation. Once this is done the drop to lagering temps pretty much stops any fermentation activity and clears the beer while letting it mature.

Sweet cheers for that I'll give it a go
 
Would it be advisable to cold crash after a diacetyl rest then move to a clean fermenter for the lager period?
 
Would it be advisable to cold crash after a diacetyl rest then move to a clean fermenter for the lager period?

You wouldn't need to cold crash first just rack it off for the lager period.
As for the diacetyl rest - did you pitch at fermentation temp ? If so, you usually wont have a problem with diacetyl - in my experience anyway. When i pitch my yeast at 50F i've never had one butterscotch problem. But when i pitched at room temp and let the temp drop to 50- it was like a sweet popcorn flavor. Quite nice but not what i was after. Good luck i'm sure your beer will be delicious :mug:
 

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