Homebrewers Association | AHA Forum

General Category => Yeast and Fermentation => Topic started by: flbrewer on March 13, 2014, 01:28:35 AM

Title: Speeding up fermentation
Post by: flbrewer on March 13, 2014, 01:28:35 AM
Are there ways to speed up fermentation without producing off-tasting by products? Does increasing the viable yeast quantities work?
Title: Re: Speeding up fermentation
Post by: euge on March 13, 2014, 01:37:59 AM
Increase temp and/or yeast strain choice.
Title: Re: Speeding up fermentation
Post by: Jimmy K on March 13, 2014, 01:42:36 AM
To a point yes. Adding more yeast should ferment faster. The risk is not so much off flavors but a lack of fermentation flavors - esters, etc. You might be able to pick a yeast that finished faster.

Probably better to think of the whole process. With the right yeast and good temp control you could get a good ferment time and reduced post ferment aging time, move to bottling faster.

Sent from my XT1030 using Tapatalk
Title: Re: Speeding up fermentation
Post by: euge on March 13, 2014, 01:48:01 AM
I think Windsor is a beast with normal beer. Very fast ferment. So is BRY-97 (sometimes). And that is at the mid-60's.
Title: Re: Speeding up fermentation
Post by: majorvices on March 13, 2014, 02:36:12 AM
I have noticed on the few times I have let the temp crash too cold that ramping the temp up (say, from 50 to 68-70 over 3-4 days) quickly accelerates fermentation time with  no off flavors (assuming that yeast can work that cold.) Also, pitching a second batch of beer on a equal size beer 24 hours into its growth cycle really speeds up fermentation with no off flavors. So, say you brew 5 gallons of beer day one, aerate and pitch an adequate yeast pitch for that size beer, then put 5 more gallons on top of that 12-24 hours later you will drastically speed up fermentation time. Just be sure to aerate each batch well.
Title: Re: Speeding up fermentation
Post by: quattlebaum on March 14, 2014, 03:29:13 PM
To a point yes. Adding more yeast should ferment faster. The risk is not so much off flavors but a lack of fermentation flavors - esters, etc. You might be able to pick a yeast that finished faster.

Probably better to think of the whole process. With the right yeast and good temp control you could get a good ferment time and reduced post ferment aging time, move to bottling faster.

Sent from my XT1030 using Tapatalk

+1. When i want a "faster" ferm.  I plan my beer around that. Pick a style that i can use such yeast that flocculates faster along with not requiring requiring long aging. Above all i never do anything to"stress" the yeast
Title: Re: Speeding up fermentation
Post by: dkfick on March 14, 2014, 03:30:53 PM
Increasing fermentation pressure will help as well. If you ferment at 15psi you can go warmer with reduced esters.
Title: Re: Speeding up fermentation
Post by: blatz on March 14, 2014, 03:43:56 PM
san diego super (WL090) ferments pretty quick.
Title: Re: Speeding up fermentation
Post by: morticaixavier on March 14, 2014, 03:56:02 PM
Increasing fermentation pressure will help as well. If you ferment at 15psi you can go warmer with reduced esters.

good call, if you are able to run a pressurized fermentation that can really speed things up without compromising the quality of the brew.

**EDIT**

plus, you are already half carbed up at the end as long as you can transfer under pressure as well.
Title: Re: Speeding up fermentation
Post by: dkfick on March 14, 2014, 07:44:08 PM
Yeah a spunding valve is pretty cheap and easy to make for a ball/pin lock keg. I have 2 10 gallon corny kegs I use to ferment in.
Title: Re: Speeding up fermentation
Post by: reverseapachemaster on March 15, 2014, 04:54:29 PM
Give your yeast an impassioned pep talk daily.
Title: Re: Speeding up fermentation
Post by: HoosierBrew on March 15, 2014, 05:31:19 PM
san diego super (WL090) ferments pretty quick.

+1.  Sure does. It's done and over in ~ 24 -72 hours, typically. The new Wyeast 1217 PC release is allegedly the equivalent as well.