Ss Brewtech’s Biggest Baddest Holiday Giveaway Ever!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Temperature Control
Thread Tools
Old 01-14-2014, 05:09 PM   #21
Feedback Score: 0 reviews
Join Date: Dec 2012
Location: Tyler, Texas
Posts: 5,174
Liked 725 Times on 630 Posts
Likes Given: 631


Originally Posted by nicklawmusic View Post
So when people say 'off flavours' what do they mean? Is it something that's going to be terribly noticeable or just kind of like, 'that tastes okay but with a strange twang'?
It depends on how warm you pitched, how far above the proper temp range it fermented and whether or not you under-pitched the yeast. It's essentially unwanted flavor(s) in the beer that can be anything from just a slight "twang" to so nasty that it taste like a**.

Good Temp Control -----> Happy Yeast ------> Tasty Brew
BigFloyd is offline
Reply With Quote
Old 01-14-2014, 05:45 PM   #22
Former future HOF Brewer
Feedback Score: 3 reviews
Join Date: Nov 2011
Location: Santa Barbara, CA
Posts: 2,921
Liked 585 Times on 426 Posts
Likes Given: 1026


Originally Posted by nicklawmusic View Post
It was just a dried yeast that came with the beer kit. It didn't say on it what strain of yeast it was.

The FV was at 24c for around 3 hours, after which I turned the belt off and allowed the wort to cool.

Now it's back to 20c where it should be.

Have I totally ruined my beer on that 3 hour period?
No. And I certainly didn't mean to say that in the first response to the thread. But your question was how much does it matter, and it DOES matter a lot. It'll still be beer, but I bet it won't be as good as the next one you brew when you don't bother with the belt, or turn the settings WAY down on it.

What happens is that when it turns on, the thermal inertia of the wort takes a while to heat up and then the belt shuts off when it gets to temp. But inertia doesn't stop there, the wort temp continues to rise to several degrees above the set point of the belt, and therefore overheats your wort.

In the future, if the ambient temp in your basement is a few degrees below where you want to ferment at, you can let the yeast's own heat production take care of the difference. I deal in Fahrenheit, but I'd say if you want to ferment at 65 and your ambient temp is 60, you're in a pretty good place. For finishing out really big beers after 3-4 days of fermentation are done you can start using the brewbelt to ratchet temps up gradually to the 70F+ range. The key is that fusol alcohol production generally happens in the first 72 hours of fermentation so turning up the heat for a few days after that won't hurt your beer.

Edit, it sounds like you weren't too hot for too long, so the effects could be mild. It's still beer. I personally dump batches that don't turn out right, but then again, I've brewed almost 70 batches of beer, and I brew 2-3 times a month, so I have that luxury. I wouldn't recommend dumping your first ever batch of beer unless it's completely unpalatable. You'll probably be alright, but what's been shared in this thread will help you make your next batch even better.
Batch counter: 123 batches (11/29/11-7/22/15).
jbaysurfer is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Temperature Control Col_klink Beginners Beer Brewing Forum 5 03-15-2013 04:57 PM
temperature control graydragon2 Mead Forum 0 03-04-2013 05:21 AM
Temperature Control Pilotpip Fermentation & Yeast 2 06-12-2012 05:21 PM
Temperature Control Lochmiel2003 Beginners Beer Brewing Forum 7 11-12-2008 07:59 PM
Temperature Control HuggerOrange General Techniques 4 02-01-2008 05:35 PM

Forum Jump

Newest Threads