Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Frozen yeast
Reply
 
LinkBack Thread Tools
Old 10-14-2012, 02:46 PM   #1
TxBrewHouse
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2012
Location: Greenville, Tx
Posts: 62
Liked 1 Times on 1 Posts

Default Frozen yeast

I accidentally froze my yeast. I wasn't paying attention to what I was doing. Think they'll be ok or do I need to buy more.

__________________
TxBrewHouse is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 02:58 PM   #2
MG1602
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: Richardson, Tx
Posts: 173
Default

Buy more. When you freeze any living organism, you have to use some cryoprotectant. You didn't, so your yeast are dead. When water freezes, it crystallizes. Think about all these tiny swords being created and puncturing the cell walls of the yeast.

__________________
MG1602 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:06 PM   #3
TxBrewHouse
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2012
Location: Greenville, Tx
Posts: 62
Liked 1 Times on 1 Posts

Default

I knew that but I guess deep in my heart I was hoping they would be ok. Now I have to drive an hour to go get more.

__________________
TxBrewHouse is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:14 PM   #4
Flycal6
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2011
Location: , Mid East
Posts: 26
Likes Given: 1

Default

Pitch it and see what happens. Any yeast spores can probably take the freeze. Worst case scenario: nothing happens.

__________________
Flycal6 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:15 PM   #5
MG1602
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: Richardson, Tx
Posts: 173
Default

The heartbreak is better now than when you realize than that your whole batch of beer is crap!

__________________
MG1602 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:16 PM   #6
MG1602
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: Richardson, Tx
Posts: 173
Default

Quote:
Originally Posted by Flycal6
Pitch it and see what happens. Any yeast spores can probably take the freeze. Worst case scenario: nothing happens.
Man, why do you want to set yourself up? Bad advice.
__________________
MG1602 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:31 PM   #7
Flycal6
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2011
Location: , Mid East
Posts: 26
Likes Given: 1

Default

If the yeast are all dead, I think they would just sink to the bottom of the fermenter. Toss in a new pack the next day. If they start fermenting though, you saved yourself that hour drive.

I can't see a down side.

__________________
Flycal6 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:33 PM   #8
Flycal6
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2011
Location: , Mid East
Posts: 26
Likes Given: 1

Default

But take my advice with a grain of salt. I've skunked my share of beer.

__________________
Flycal6 is offline
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:43 PM   #9
stonebrewer
Invented the IPL
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
stonebrewer's Avatar
Recipes 
 
Join Date: Mar 2012
Location: rockville, md
Posts: 906
Liked 91 Times on 79 Posts
Likes Given: 9

Default

I would make a starter with it well before you want to brew and see if it krausens. If it does, then you are okay...enough yeast survived the cold temps. Put the starter in the fridge until brew day, take it out when you setup and it should be good to pitch at the end of the day.

Did you freeze it solid? If so, it probably will be completely dead. I have partially frozen yeast before and had no problem getting a starter going and a rocking batch of brew afterwards.

__________________
stonebrewer is online now
 
Reply With Quote Quick reply to this message
Old 10-14-2012, 03:46 PM   #10
wolfman_48442
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2011
Location: Fraser, MI
Posts: 531
Liked 9 Times on 9 Posts
Likes Given: 2

Default

There is certainly some cellular damage, but you may well be able to recover.
It's critical that you make a starter before pitch for a few reasons:

  1. See if you have any viability (see if the starter is active)
  2. Rebuild your cell count up to where it should be
  3. Beers even under the best conditions benefit from proper pitch rates, which normally means making a starter
With that all said, don't give up. I and many others here have had a brain fart and frozen our yeast, and been able to recover and make a great beer after building a proper starter.
__________________
wolfman_48442 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Frozen Yeast Bank vs. Yeast Slanting shortyjacobs Fermentation & Yeast 11 09-24-2010 07:13 PM
Frozen Yeast on brew day. Suitable Dry Yeast? Jknapp Fermentation & Yeast 3 09-19-2009 07:42 PM
Yeast Starter from frozen yeast bank dfohio General Techniques 5 04-30-2009 07:32 PM
frozen yeast lostforatime Recipes/Ingredients 2 09-02-2008 02:33 AM
Frozen yeast bank with yeast cakes? mrfocus Recipes/Ingredients 5 11-08-2007 01:13 AM