Yeast & Pitching Temp - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Extract Brewing > Yeast & Pitching Temp

Reply
 
Thread Tools
Old 12-03-2013, 07:47 PM   #1
yeastieboys9
Recipes 
 
Mar 2013
Posts: 12


I've just made only my second batch of beer, this time in considerably colder times. I pitched the yeast yesterday at around 16 degrees C and the beer has dropped to around 15 now one day on. The yeast packet said that 15-20 is ideal. Will the fermentation still start at these temperatures? Will heating it up help to start or a day after pitching have I messed it up?

The brew is an American pale ale and the yeast was safale us 05. I've now wrapped the fermenter up in blankets to try and raise the temp but I am not sure if I can leave it at the lower temp? Any help much appreciated for an amateur.

 
Reply With Quote
Old 12-03-2013, 07:56 PM   #2
eluterio
Recipes 
 
Jun 2012
Ontario, Oregon
Posts: 747
Liked 47 Times on 47 Posts


You should be fine, if pitched at the lowest temp it might take longer to get fermentation started. Wrapping it is a great Idea to raise the temp to where you want it. I would leave it and just another 12 hours you should start to see bubbles. Once this starts the internal temp will raise from the yeast activities. I wouldnt go above 20C for this style of beer.

 
Reply With Quote
Old 12-03-2013, 08:14 PM   #3
yeastieboys9
Recipes 
 
Mar 2013
Posts: 12

Great, thanks for the answer. I will keep it wrapped up and wait for some action. Then hopefully the temperature will maintain itself?

 
Reply With Quote
Old 12-05-2013, 01:32 PM   #4
yeastieboys9
Recipes 
 
Mar 2013
Posts: 12

I left the fermenter for a day more and the reaction has started. Now looking at a cm of foam in top. The temperature has risen to 15 degrees now, does this mean the total fermenting time will be greater? I was planning on leaving it. 3 weeks maximum.

 
Reply With Quote
Old 12-05-2013, 04:10 PM   #5
eluterio
Recipes 
 
Jun 2012
Ontario, Oregon
Posts: 747
Liked 47 Times on 47 Posts


Quote:
Originally Posted by yeastieboys9 View Post
I left the fermenter for a day more and the reaction has started. Now looking at a cm of foam in top. The temperature has risen to 15 degrees now, does this mean the total fermenting time will be greater? I was planning on leaving it. 3 weeks maximum.
Good that its starting to bubble but with that temp going raising up 15 degrees? Is this F or C? You were sitting at 20 and if im assuming 15F your now in the 80's F? thats way too warm I would not keep it covered and if you have a fan circulate cooler air to help the temp drop back to at least 23C. If not you might have some off flavors or you might not.

Why did it increase so much? Ambient temp go up?

Again I would stress out about it let it do its thing it will still be beer!

 
Reply With Quote
Old 12-05-2013, 04:18 PM   #6
Black Island Brewer
HBT_SUPPORTER.png
 
Black Island Brewer's Avatar
Recipes 
 
Sep 2011
Isla Negra
Posts: 1,972
Liked 772 Times on 431 Posts


Quote:
Originally Posted by yeastieboys9 View Post
I left the fermenter for a day more and the reaction has started. Now looking at a cm of foam in top. The temperature has risen to 15 degrees now, does this mean the total fermenting time will be greater? I was planning on leaving it. 3 weeks maximum.
15C (59F?) is on the cold side, but fermentation is exothermic, so it will warm up some, and depending on the ambient air temp, could get too warm, just keep and eye on it. And yes, colder fermentations generally take longer.

You can't really "plan" on when it will be done fermenting, you just have to let it do its thing. Wait for a few days after you see any signs of activity and take a gravity reading. Taste the sample. Wait a few more days and take another reading, and taste. When you have two or three gravity readings that stay the same, and the beer tastes fine, then bottle, or cold crash, or keg - whatever you plan to do next. And above all, have fun, you're two batches in to an AMAZING hobby!
__________________
"Oh don't give me none more of that Old Janx Spirit/No, don't you give me none more of that Old Janx Spirit/For my head will fly, my tongue will lie, my eyes will fry and I may die/Won't you pour me one more of that sinful Old Janx Spirit"

 
Reply With Quote
Old 12-05-2013, 05:16 PM   #7
eluterio
Recipes 
 
Jun 2012
Ontario, Oregon
Posts: 747
Liked 47 Times on 47 Posts


Quote:
Originally Posted by Black Island Brewer View Post
15C (59F?) is on the cold side, but fermentation is exothermic, so it will warm up some, and depending on the ambient air temp, could get too warm, just keep and eye on it. And yes, colder fermentations generally take longer.

You can't really "plan" on when it will be done fermenting, you just have to let it do its thing. Wait for a few days after you see any signs of activity and take a gravity reading. Taste the sample. Wait a few more days and take another reading, and taste. When you have two or three gravity readings that stay the same, and the beer tastes fine, then bottle, or cold crash, or keg - whatever you plan to do next. And above all, have fun, you're two batches in to an AMAZING hobby!
Taste, Taste, and More Taste will leave your carboy nice and empty! HAHA

 
Reply With Quote
Old 12-05-2013, 08:59 PM   #8
yeastieboys9
Recipes 
 
Mar 2013
Posts: 12

Sorry I meant it is now at 15c the temperature hasn't shot up drastically. Hopefully there is some reaction. I'll give it a taste after two weeks and see how it's doing.

 
Reply With Quote
Old 12-05-2013, 11:46 PM   #9
hbtasdfg
Recipes 
 
Dec 2011
seattle, wa
Posts: 78
Liked 5 Times on 5 Posts


15c is just fine. us-05 is a machine.

 
Reply With Quote
Old 01-04-2014, 10:16 AM   #10
yeastieboys9
Recipes 
 
Mar 2013
Posts: 12

Nice one, thanks for all your input. In the end I left it in the primary fermenter for about 4 weeks due to the festive holiday. Looks good bottled so just another few weeks to wait!

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dry yeast and pitching temp Bubba_Mustafa Fermentation & Yeast 13 12-23-2014 10:14 PM
Yeast pitching temp. tvanek29 Fermentation & Yeast 13 07-09-2013 08:25 PM
Yeast temp before pitching skipper Fermentation & Yeast 10 08-07-2011 11:26 AM
yeast pitching temp matty13 Beginners Beer Brewing Forum 3 02-20-2011 10:34 PM
yeast pitching temp Mots Beginners Beer Brewing Forum 8 12-18-2007 06:19 AM


Forum Jump