CliffMongoloid
Well-Known Member
Is ambient temp of 68 too warm?
Usually use Us-05 yeast
Usually use Us-05 yeast
kaz said:since the internal temp can be much warmer, i would try to keep ambient down to more like 62f.
That doesn't sound right...
If you're fermenting in open air (not immersing the fermenter) you get a much bigger insulating effect from the glass carboy or plastic bucket. Regardless of the ambient temperature, fermentation is producing heat and the fermenter is trapping some of it, raising the temp of your beer. I know for a fact that even maintaining an ambient 62F my hefeweizen will hit 70F inside the fermenter when it's going full speed. This is why I switched to water baths for more accurate temperature control, and much slower temperature swings. Immersed you can be fairly confident you're within 1-2 degrees of the water bath temp.
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