Fermentation Temp for stout

Graeme · 04-09-2009, 03:54 PM

Have a stout fermenting in my closet at the moment, just a tad concerned about the temp, its a little nippy, not too cold though, id expect the temp in the closet to be around 15 degrees celcius or 59F. Is this a little low?

davebl · 04-09-2009, 03:55 PM

What kind of yeast are you using?

Graeme · 04-09-2009, 04:00 PM

Safale us-04

**humann_brewing** · 04-09-2009, 04:12 PM

google is my friend and this is what he said:

Recommended fermentation temperature: 15C – 24C.

http://www.fermentis.com/FO/pdf/HB/EN/Safale_S-04_HB.pdf

**ChshreCat** · 04-09-2009, 04:13 PM

The low end of 04 is about 64F, so you're a bit chilly for that one. Might still work, but if it does, it'll be slooooooow going. I'd try to get the temp up a little bit if it were me.

**the_bird** · 04-09-2009, 04:16 PM

Well, remember that fermentation itself will add a few degrees to the beer's temp above ambient. You might be better off with ambient around 62°-64°, but you may well be fine now. Are you seeing signs of an active fermentation? I'd rather be too cool than too hot any day of the week.

Graeme · 04-09-2009, 05:36 PM

The airlock is bubbling away and krausen is there too. In the vessel though I would imagine as you said it will be a few degress higher

**the_bird** · 04-09-2009, 06:19 PM

You're fine, then; sounds like you might be in the optimal range after considering the heat from fermentation.