Why do you use a temp. controller? - Home Brew Forums

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Old 01-20-2006, 07:59 PM   #1
AHammer16's Avatar
Aug 2005
Chicago, IL
Posts: 501
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Why do you need to use a temp controller for a lagering fridge? Is the controller built in to the fridge/ freezer not adequate?
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Old 01-20-2006, 08:02 PM   #2
Jun 2005
Williamsburg, Va
Posts: 361
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You are correct. Most fridge thermostats can't go much higher than the mid 40s. Most lagers need to be fermented in the low to mid 50s. An external temperature controller will achieve this. Once the beer has fermented, the fridge thermometer will work fine for the "lagering" phase.

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Old 01-22-2006, 08:36 PM   #3
david_42's Avatar
Oct 2005
Oak Grove, Oregon, USA
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Also, a fridge themostat will allow much larger temperature swings than a controller will. An good controller will keep the temperature within one degree of the desired point.
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