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Date: 22 Oct 2006 11:47:08
From: Gerard Eberlein
Subject: questions on using a yeast cake
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I have an IPA in a 6.5 gallon carboy that had an OG of 1.074. I'm planning
on doing another higher gravity IPA with an estimated 1.090 OG at about the
time this will be ready for secondary. Couple questions.
1) Do I need to use a clean carboy or is it okay just to siphon the new wort
into the dirty carboy and shake well?
2) How long after I siphon off the first beer can I let the yeast cake sit
before using if I cover the carboy and keep it in the fridge at about 66F?
Or should I really add the wort the same day?
Thanx in advance.
Gerard
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Date: 22 Oct 2006 10:02:27
From: Scott Lindner
Subject: Re: questions on using a yeast cake
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>I have an IPA in a 6.5 gallon carboy that had an OG of 1.074. I'm planning
> on doing another higher gravity IPA with an estimated 1.090 OG at about
> the
> time this will be ready for secondary. Couple questions.
> 1) Do I need to use a clean carboy or is it okay just to siphon the new
> wort
> into the dirty carboy and shake well?
That's exactly what I do. Works great.
> 2) How long after I siphon off the first beer can I let the yeast cake sit
> before using if I cover the carboy and keep it in the fridge at about 66F?
> Or should I really add the wort the same day?
I always do it same day. In fact, I typically have things timed so the
yeast cake is sitting there no more than 10 minutes, but that's just me. I
know some people put the fermenter in a frig until their next brew and they
haven't complained of problems. I'd think your only real concern with
timing is making sure the yeast is happy and you don't get an infection. If
it's next day you want to brew again, I personally would just put a lid on
it and put it in a cellar or a cool part of the house until the next day.
Scott
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Date: 22 Oct 2006 12:14:00
From: Ed Edelenbos
Subject: Re: questions on using a yeast cake
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"Scott Lindner" <nospam@noemail.com > wrote in message
news:EZ-dnfCLzeuPC6bYnZ2dnUVZ_rydnZ2d@adelphia.com...
> >I have an IPA in a 6.5 gallon carboy that had an OG of 1.074. I'm
> >planning
>> on doing another higher gravity IPA with an estimated 1.090 OG at about
>> the
>> time this will be ready for secondary. Couple questions.
>> 1) Do I need to use a clean carboy or is it okay just to siphon the new
>> wort
>> into the dirty carboy and shake well?
>
> That's exactly what I do. Works great.
>
>
>> 2) How long after I siphon off the first beer can I let the yeast cake
>> sit
>> before using if I cover the carboy and keep it in the fridge at about
>> 66F?
>> Or should I really add the wort the same day?
>
> I always do it same day. In fact, I typically have things timed so the
> yeast cake is sitting there no more than 10 minutes, but that's just me.
> I know some people put the fermenter in a frig until their next brew and
> they haven't complained of problems. I'd think your only real concern
> with timing is making sure the yeast is happy and you don't get an
> infection. If it's next day you want to brew again, I personally would
> just put a lid on it and put it in a cellar or a cool part of the house
> until the next day.
>
> Scott
I'm a heathen. I do just that... put a cover (aluminum foil) on the lid of
the carboy and let it sit in the basement. I've let it sit for up to 2
weeks and had no problems. Typically, I try to rack one and on the same day
pour new wort in (usually after pouring off about 1/2 the cake) but waiting
has never been a problem.
Ed
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Date: 22 Oct 2006 18:20:14
From: JS
Subject: Re: questions on using a yeast cake
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On Sun, 22 2006 11:47:08 -0400, "Gerard Eberlein"
<dormouse@charter.net > wrote:
>I have an IPA in a 6.5 gallon carboy that had an OG of 1.074. I'm planning
>on doing another higher gravity IPA with an estimated 1.090 OG at about the
>time this will be ready for secondary. Couple questions.
>1) Do I need to use a clean carboy or is it okay just to siphon the new wort
>into the dirty carboy and shake well?
>2) How long after I siphon off the first beer can I let the yeast cake sit
>before using if I cover the carboy and keep it in the fridge at about 66F?
>Or should I really add the wort the same day?
>
>Thanx in advance.
>
>Gerard
>
Don't mean to sound cynical, but I would hesitate to reuse a cake from
a 1.074 gravity ale for one even stronger. From what I've learned
from this group, one would do better to make a mid-range OG brew, say
1.040-1.050 or so, then use that cake for a stronger one. It seems to
me the high OG of your 1st brew may have stressed the yeast.
Personally I would not chance it, but I'm sure there are those who
will chime in with their contrary opinions.
John S.
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Date: 28 Oct 2006 09:07:11
From: Scott Lindner
Subject: Re: questions on using a yeast cake
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> Don't mean to sound cynical, but I would hesitate to reuse a cake from
> a 1.074 gravity ale for one even stronger. From what I've learned
> from this group, one would do better to make a mid-range OG brew, say
> 1.040-1.050 or so, then use that cake for a stronger one. It seems to
> me the high OG of your 1st brew may have stressed the yeast.
> Personally I would not chance it, but I'm sure there are those who
> will chime in with their contrary opinions.
That's a great point to bring up. Although I don't recall exactly why, I'm
under the same impression. You always go from light to dark, low hops to
hoppy, and weaker to stronger.
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Date: 30 Oct 2006 20:29:54
From: John 'Shaggy' Kolesar
Subject: Re: questions on using a yeast cake
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On Sat, 28 2006 09:07:11 -0600, <nospam@noemail.com > wrote:
>> Don't mean to sound cynical, but I would hesitate to reuse a cake from
>> a 1.074 gravity ale for one even stronger. From what I've learned
>> from this group, one would do better to make a mid-range OG brew, say
>> 1.040-1.050 or so, then use that cake for a stronger one. It seems to
>> me the high OG of your 1st brew may have stressed the yeast.
>> Personally I would not chance it, but I'm sure there are those who
>> will chime in with their contrary opinions.
>
> That's a great point to bring up. Although I don't recall exactly why, I'm
> under the same impression. You always go from light to dark, low hops to
> hoppy, and weaker to stronger.
I think the common rule of thumb says that if the OG was over 1.060 to not
reuse the yeast. Personally, I think that's a little conservative. However,
in general the idea has merit. Yeast after a high OG fermentation tend to be
more stressed, so wouldn't make as good of a candidate for reuse in another
beer. The only thing really in question is the definition of "high OG".
John.
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Date: 30 Oct 2006 17:27:51
From: Scott Lindner
Subject: Re: questions on using a yeast cake
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> I think the common rule of thumb says that if the OG was over 1.060 to not
> reuse the yeast. Personally, I think that's a little conservative.
> However,
> in general the idea has merit. Yeast after a high OG fermentation tend to
> be
> more stressed, so wouldn't make as good of a candidate for reuse in
> another
> beer. The only thing really in question is the definition of "high OG".
I've reused a yeast cake from batches as high as 1.090 and have noticed any
fermentations issues. I can't say anything for off flavors that could have
occurred since I'm a major idiot when it comes to that sort of thing, but
the fermentation hummed along nicely.
Scott
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Date: 22 Oct 2006 19:37:24
From: John 'Shaggy' Kolesar
Subject: Re: questions on using a yeast cake
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On Sun, 22 2006 11:47:08 -0400, <dormouse@charter.net > wrote:
> I have an IPA in a 6.5 gallon carboy that had an OG of 1.074. I'm planning
> on doing another higher gravity IPA with an estimated 1.090 OG at about the
> time this will be ready for secondary. Couple questions.
> 1) Do I need to use a clean carboy or is it okay just to siphon the new wort
> into the dirty carboy and shake well?
Just put the new beer right into the carboy that the first beer came out
of, aka the "dirty" carboy. No need to try and transfer both to a clean
carboy.
> 2) How long after I siphon off the first beer can I let the yeast cake sit
> before using if I cover the carboy and keep it in the fridge at about 66F?
> Or should I really add the wort the same day?
I would prefer to do it the same day, however if it's covered and kept in
the fridge it would probably be alright for at least a couple days.
John.
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