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Old 11-02-2012, 02:21 PM   #1
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Default Bar Refrigerator at 42F, Better Bottles Insulation and Lagers Question.

I'm plotting on how to get a steady production of small batch lagers going in the garage. I've got this little refrigerator that on it's lowest setting sits at 40-42F that I think will work for fermenting with WLP833 yeast in these 3 gallon better bottles. As I understand it that yeast has a pretty low optimal temperature range starting at 48F. Plastic is a better insulator than glass and I've heard that in glass carboys your temperature can vary by 5F.

So does anyone think I won't be able to get a good fermentation in a 40-42F refrigerator?(proper starter sizes of course)

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Old 11-02-2012, 02:34 PM   #2
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Do you have a brew belt, or similar device, to add a little heat directly to your better bottle? That'd probably get you to a pretty ideal temperature range in those conditions. Otherwise, I think just placing your fermenter directly into a 40F fridge with yeast that bottom out at 48F is asking for the yeast to go dormant pretty quickly.

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Old 11-02-2012, 04:11 PM   #3
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I do not have a brew beltbut you did give me another idea. Just a nice thick bath towel or blanket around the fermenter for insulation? I don't think the yeast will necessarily fall out with an ambient temperature of 42F given the heat put off by the fermentation but I do feel it's close especially when the unit is running. A cover of sorts should further insulate it and keep that direct cold off the bottle.

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