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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > saving yeast
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Old 06-05-2009, 04:02 PM   #1
ackgod
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Default saving yeast

I know there is a thread about how to wash yeast properly, but unfortunately I opted for the lazy mans way of saving yeast and before i go and use the yeast and ruin a batch i wanted to hear your thoughts on if the yeast will still be good.

Once i racked the beer from the primary, i dumped the remaining contents of the carboy into a sanitized large glass jar. I stuck that in the fridge (it was about 3 inches of yeast and stuff) and it settled out into a layer of trub, then yeast, and then a layer of liquid on top. That sat in the fridge undistrubed for about a month (with a lid on it) and then when i realized i still had it i poured off the liquid, scooped the yeast off the top, and put it in a sanitized beer bottle (filled it about half way) and capped it and stuck it back in the fridge.

Will this yeast be okay? How will i know if it is not. its wyeast 1056. what is the worst that could happen if i used the yeast? wouldn't it ruin the batch or just not ferment.

Thanks for the help

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Old 06-05-2009, 04:04 PM   #2
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Do a starter in advance of your next brew. That's really the only way you'll know without potentially spoiling your next beer.

I'm guessing you'll have zero problems using it.

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Old 06-05-2009, 04:13 PM   #3
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I agree with danielinva. If the starter takes off you are good. If it doesn't hopefully you have a spare packet of yeast.

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Old 06-05-2009, 04:19 PM   #4
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When using beer from previous beers, are there and advantages or disadvantages to it compared to getting new yeast from the store? What about all the dead yeast on the bottom and autoloysis (SP) affecting the next batch?

Also is it as simple as ackgod made it out to be... collect the goop, refrigerate it to settle it out, decant then store?

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Old 06-05-2009, 04:20 PM   #5
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2 issues here -- one as mentioned above is whether the yeast is still viable. Seeing whether the yeast takes off will help that. The second is whether there's anything else growing in your culture besides the original yeast strain. Be sure you smell and even taste what ferments in the starter. This will help reassure you that you don't have anything else funky in there.

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Old 06-05-2009, 04:29 PM   #6
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what would be a good 'spare' packet of yeast?

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Old 06-05-2009, 04:35 PM   #7
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Quote:
Originally Posted by ackgod View Post
what would be a good 'spare' packet of yeast?
That would depend on what you are brewing. Since you're using Wyeast's American ale yeast, I think a decent replacement would be a Safale 05 for a dry yeast, or pick up another pack of the Wyeast if you want liquid as a back up. S05 and S04 are many folks' favorite dry yeast depending on if they want American or English style.
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Old 06-05-2009, 04:36 PM   #8
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If you were planning on using Wyeast 1056, Safale US-05 is the dry equivalent.
In fact, US-05 use to be called US-56.




Edit:
Too slow. ChshreCat beat me.

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Old 06-05-2009, 06:12 PM   #9
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You stated that the yeast was put into a sanitized jar. I sterilize my mason jars by boiling them for at least 15 minutes. (I just harvested 2 jars of 1056 last night coincedently.) Better safe than sorry.

If it is bad you will know by smelling it.

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Old 06-05-2009, 06:52 PM   #10
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smells like yeast as far as i can tell, nothing repulsive.

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