Fermentation Temps with rubbermaid and aquarium heater. .

GLoBaLReBeL · 03-11-2010, 10:08 PM

I'm building my temperature controlled fermentation chamber (rubbermaid tub with a aquarium heater) and I was wondering . . if I put the primary into the tub and set the temp at 69F (This is a Wheat beer with a belgian yeast) will the temperature inside the fermenter (glass carboy) be the same as the temp of the water outside? I plan on filling the water on the outside up to about the 3 - 4 gallon mark of the carboy.

I ask because I want to keep my beers at a specific temperature! As close as possible at least, with the least amount of change.

I know a few of you out there currently use this method. . what say you?

**Yooper** · 03-11-2010, 10:12 PM

Yes, generally the water is about the same temperature as the beer. If you add more water, the temperature will be even closer. That much water insulates the fermenter pretty well.