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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Which do you think is my fermenting temp
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Old 11-02-2010, 02:36 PM   #11
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. . . I also have a temp strip applied to my plastic fermenting bucket.
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People (including me) ran tests a few years back and determined that the temperature on the outside of a carboy or bucket was very close to the temperature inside.
I believe this is only true with glass. A plastic bucket has insulating properties that glass does not. The temperature of the inside of the bucket may not be the same as on the outside.


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Old 11-02-2010, 02:50 PM   #12
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I believe this is only true with glass. A plastic bucket has insulating properties that glass does not. The temperature of the inside of the bucket may not be the same as on the outside.
When there is a change in temperature, glass will reflect that change quicker than plastic. Its not as if the plastic is absorbing heat from the fermentation and holding on to it forever, it just taste a bit longer to transfer that heat. Once that happens, the fermometer will read an accurate temp.

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Old 11-02-2010, 03:59 PM   #13
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The water temp should not be affecting the sticker directly; the temperature of the water bath will modulate the temp of the fermenter, which will be reflected by a change in the on the sticker....does that make sense?

You go by the number in the middle.
Gotcha. I just didn't know if the temp was gonna be 5-10 degrees higher inside or if the water was helping it all stay cool.

Everything is fermenting right now and keeping a pretty steady temp.
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Old 11-02-2010, 04:08 PM   #14
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Gotcha. I just didn't know if the temp was gonna be 5-10 degrees higher inside or if the water was helping it all stay cool.


Everything is fermenting right now and keeping a pretty steady temp.

Nope, for these purposes consider the fermenting beer and the fermenting vessel and a single unit.
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Old 11-02-2010, 05:05 PM   #15
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Nope, for these purposes consider the fermenting beer and the fermenting vessel and a single unit.
Cool. That puts me at ease a bit until I can get a fridge instead of a trashcan to ferment in haha.


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