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Old 06-16-2013, 10:53 AM   #1
wadwrich
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Default first brew fermentation temp. too low?

I read a lot of stuff on here about keeping the fermenting beer down to between 60-70F and that the actual fermenting temp would be like 3-5F warmer than ambient temp. Well my house stays around 70-72 so I wanted to cool it down a little more. I read about people keeping it in a water bath with a bottle of ice in it. I did that before I went to bed last night and this morning the water temp is around 50 and there are no bubbles yet. I know that people say it can take up to 24 and even 36 hours before seeing that, but I am concerned that it is too cold for ale. I brewed an irish stout and used s-04 yeast that I rehydrated. It has been in the water bath about 14 hours now. With the water temp at 50F should I take the fermentor out? Or maybe just take the ice out? If my yeast went to sleep, will they wake up if the beer warms up?

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Old 06-16-2013, 11:50 AM   #2
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50F is a little cool for an ale fermentation, but nothing to worry about, just take the ice out and let it naturally warm up a little. The yeast will wake up. The good news is that by keeping the beginning temperature down, you're cutting ester production.

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Old 06-16-2013, 12:06 PM   #3
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So just take the ice out of the tub but leave the beer in there so that it won't warm up too fast?

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Old 06-16-2013, 12:16 PM   #4
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Don't worry about it warming up too fast. Drain your tub and add some normal 60-70 degree water and then keep an eye on your temps. As it wakes up, it will start the ferment. Just try not to let it get too warm (70+) and you will be fine. Just add some frozen water bottles to keep it around 60-65. You will have beer anyhow. The lower temps will just make it better, but don't freak if it gets a little too warm or cold for that matter.

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Old 06-16-2013, 12:18 PM   #5
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ok thanks

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Old 06-16-2013, 11:45 PM   #6
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27 hours and still no bubbles. Starting to get a little worried.

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Old 06-16-2013, 11:59 PM   #7
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It's going to take some extra time for all of that liquid to warm up and the yeast to begin their activities. Patience Grasshopper.

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Old 06-17-2013, 02:23 AM   #8
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Quote:
Originally Posted by wadwrich
27 hours and still no bubbles. Starting to get a little worried.
Could take up to 72 hours, no worries, it'll get going
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Old 06-18-2013, 10:35 AM   #9
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62 hours now and still no bubbles. Looks like there is a bit of a krausen ring though. Really hope this worked. Don't know where I went wrong. I hate not getting things right. So disappointing.

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Old 06-18-2013, 12:16 PM   #10
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Quote:
Originally Posted by wadwrich View Post
62 hours now and still no bubbles. Looks like there is a bit of a krausen ring though. Really hope this worked. Don't know where I went wrong. I hate not getting things right. So disappointing.
Bubbles mean.....that you have bubbles. A krausen ring means that you have fermentation. The slow start is a good thing as some of the compounds that produce off flavors form in that early part of the ferment if the temperature is too high. Start your ferment at the cool end of the yeast's preferred range and you make better beer. Once the ferment has slowed, temperature should be increased.
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