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Date: 22 Sep 2006 11:58:13
From: Spitzbuben
Subject: Sparge???? 1.010 OR 1.035??????
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So when I am sparging and my wort is running off at 1.010 do I stop OR
do I stop after correcting the gravity of 1.010 @ 170F, cause that
would be about 1.035 right? Do I keep going till the corrected gravity
is 1.010? I am checking the Ph which I think is more important...
thanks all!
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Date: 23 Sep 2006 06:52:14
From: JoeyB
Subject: Re: Sparge???? 1.010 OR 1.035??????
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William Benz Jr wrote:
> "Spitzbuben" <redrump21@yahoo.com> wrote in message
> news:1158951493.511786.156300@e3g2000cwe.googlegroups.com...
> > So when I am sparging and my wort is running off at 1.010 do I stop OR
> > do I stop after correcting the gravity of 1.010 @ 170F, cause that
> > would be about 1.035 right? Do I keep going till the corrected gravity
> > is 1.010? I am checking the Ph which I think is more important...
> > thanks all!
> >
>
> Stop when corrected gravity is at 1.010. I don't check ph so I can't
> comment on that.
>
> Bill
I stop run off at 1.008 but I don't use a hydrometer to check my SG.
170F is a big correction. I would question the accuracy of such a big
correction. I just started checking PH on the sparge. I also use a
refractometer (which I highly recommend if you want to drop the cash)
to check the SG of the runnings. The last batch I did, the final
running was 1.008 and the PH was 5.9. I haven't done it enough yet to
say that this is always a consistent relationhip. I would say the PH
only has a weak correlation with final running gravity. This, because
it depends on the original PH of the mash. Get a refractometer. You can
do a SG measure in about 15 sec. You will soon see that the SG does not
decrease linearly with time. It does for a while, then it takes a nose
dive. You need to be watching pretty close when it happens. That's why
its good to be taking a lot of SG measures. With the refractometer, you
can also do fancy stuff like determining OG just by measuring FG with a
hydrometer and final Brix with a refractometer.
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Date: 23 Sep 2006 13:27:09
From: William Benz Jr
Subject: Re: Sparge???? 1.010 OR 1.035??????
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"Spitzbuben" <redrump21@yahoo.com > wrote in message
news:1158951493.511786.156300@e3g2000cwe.googlegroups.com...
> So when I am sparging and my wort is running off at 1.010 do I stop OR
> do I stop after correcting the gravity of 1.010 @ 170F, cause that
> would be about 1.035 right? Do I keep going till the corrected gravity
> is 1.010? I am checking the Ph which I think is more important...
> thanks all!
>
Stop when corrected gravity is at 1.010. I don't check ph so I can't
comment on that.
Bill
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Date: 23 Sep 2006 18:31:20
From: Spitzbuben
Subject: Re: Sparge???? 1.010 OR 1.035??????
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"With the refractometer, you can also do fancy stuff like determining
OG just by measuring FG with a hydrometer and final Brix with a
refractometer."
Do you mean you can predict FG by knowing the OG???? That would be
AMAZING!!!!
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Date: 24 Sep 2006 22:55:04
From: Jack Schmidling
Subject: Re: Sparge???? 1.010 OR 1.035??????
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Spitzbuben wrote:
>
> "With the refractometer, you can also do fancy stuff like determining
> OG just by measuring FG with a hydrometer and final Brix with a
> refractometer."
Even more fun is determining the alcohol and sugar content using both.
Not sure how useful this is in beer but it is critical in sweet wines.
The sugar and alcohol fight each other and make nonsense out of either
instrument but if you plug the two numbers into an equation, you get the
real values.
Very clever. I can dig up the equation if anyone is interested.
js
--
PHOTO OF THE WEEK: http://schmidling.com/pow.htm
Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver http://schmidling.com
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Date: 24 Sep 2006 05:59:37
From: John 'Shaggy' Kolesar
Subject: Re: Sparge???? 1.010 OR 1.035??????
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On 22 Sep 2006 11:58:13 -0700, <redrump21@yahoo.com > wrote:
> So when I am sparging and my wort is running off at 1.010 do I stop OR
> do I stop after correcting the gravity of 1.010 @ 170F, cause that
> would be about 1.035 right? Do I keep going till the corrected gravity
> is 1.010? I am checking the Ph which I think is more important...
> thanks all!
You keep going until the corrected gravity is 1.010. Usually that's going
to be something like 1.000 @ 170F (although I don't have a chart in front
of me at the moment).
John.
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