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09-21-2012, 04:28 PM
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#1
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Feedback Score: 0 reviews
Join Date: Sep 2011
Location: Douglasville, Georgia
Posts: 41
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Frozen yeast...is it dead??
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So, I washing my yeast from my last batch and put it in the freezer to layer it out quickly and forgot it. Realized what I'd done this morning and stuck it in the fridge on the way to work. I killed it didn't I?
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09-21-2012, 04:37 PM
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#2
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Swollen Member
Feedback Score: 0 reviews
Join Date: Jan 2012
Location: Rockville, MD
Posts: 2,510
Liked 253 Times on 210 Posts Likes Given: 107
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how long did the yeast spend in the fridge? enough to freeze them solid?
if so, yes i fear they are dead.
a moment of silence, please.
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09-21-2012, 04:42 PM
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#3
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Feedback Score: 0 reviews
Join Date: Sep 2011
Location: Douglasville, Georgia
Posts: 41
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Oh yeah, frozen solid.
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09-21-2012, 04:43 PM
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#4
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Verae amicitiae sempiternae sunt.
Feedback Score: 0 reviews
Join Date: Feb 2012
Location: Benidorm, Alicante/Spain
Posts: 1,555
Liked 213 Times on 150 Posts Likes Given: 164
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Oh my God you´ve killed the yeasties! You bastards!!!
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09-21-2012, 04:44 PM
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#5
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Feedback Score: 0 reviews
Join Date: Sep 2011
Location: Douglasville, Georgia
Posts: 41
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It was a clean trub too. That sucks.
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09-21-2012, 05:10 PM
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#6
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Senior Member
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Join Date: Dec 2010
Location: Santa Monica, CA
Posts: 2,057
Liked 96 Times on 85 Posts Likes Given: 294
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there are lots of threads on here discussing it - short answer is it depends - at best it severely impacted the viability but may still be salvagable with a small starter and then step up from there
i had a smack pack of 1450 delivered last week that was accidentally placed in the freezer and I'm planning on doing a small starter to see if any yeast survived
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09-22-2012, 12:08 AM
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#7
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Feedback Score: 0 reviews
Join Date: Dec 2011
Location: Grand Ledge, MI
Posts: 937
Liked 96 Times on 78 Posts Likes Given: 282
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I wouldn't call em dead yet. I just had a similar incident. I unthawed them, made a new starter and threw them in there. They did fine. Let them munch for a few days and put them back in the fridge for future use.I l
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09-22-2012, 02:47 PM
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#8
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Feedback Score: 0 reviews
Join Date: Nov 2011
Location: Visalia, CA
Posts: 573
Liked 93 Times on 68 Posts Likes Given: 3
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I've done it for a few days, thawed it slowly, pitched it as usual and wouldn't you know it, that fermentation took off like a rocket. Think of it this way, the yeast that live are only going to cannibalize the yeasties that you murdered, built in yeast nutrients!
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09-23-2012, 12:03 PM
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#9
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Feedback Score: 0 reviews
Join Date: Oct 2009
Location: Pottsville, PA
Posts: 210
Liked 4 Times on 3 Posts
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same question different form of yeast
I ordered in a Hop Zombie batch with the small brew kit from smallbatchhomebrew and put the hop bag in the freezer. forgot to take out the US-05
does dry yeast do ok frozen or does it have the same problem with viability?
I'm assuming it will be ok if I use the entire packet for 1.25 G
would appreciate any thoughts
__________________
Fermenting: UFO
In bottles: John's Red BarleyWine 7/12, 6/11, 6/10, 6/09, dead ringer, WH Honey Ale, Chinese rice wine
Kits ready to brew: German Honey lager, Wanderlust Wheat, Shade Mtn stout clone, american amber ale, Yards Pale ale clone, Chocolate porter,
Future: Ghirardelli White Chocolate Stout, samiclause clone, Winter Welcome 5G,
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09-23-2012, 01:54 PM
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#10
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Feedback Score: 0 reviews
Join Date: Mar 2011
Location: Fraser, MI
Posts: 531
Liked 8 Times on 8 Posts Likes Given: 2
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Dried yeast will be perfectly ok.
Freezing damages liquid yeast when ice crystals pierce cell walls.
Dry yeast doesn't have that problem 
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