...
"Ken Montgomery" <k.montgomery1@comcast.net> wrote in message
news:3F14D0F1.9080903@comcast.net...[color=blue]
> Matt...
>
> You're really in the guess-timate zone doing it this way. What you'll be
> doing is taking two gravity readings and then coming up with something
> approximating an average. You're really much better off doing a slow,
> steady sparge and collect the runnings in one boilpot. Many years ago I
> tried doing something like what you're contemplating and ended up with
> some contamination problems in the second runoff batch. I like your
> grain to water ratio, however.
>
> Are you planning to do a PH test along the way?
>
> Ken
>
> Matt Schmidt wrote:
>[color=green]
> >Is there a way to determine gravity of the sparge?
> >My plan, & I will do this twice to collect the desired volumes.
> >mash 12# grain with 3 gallon H20.
> >Collect the first runnings in one bucket and then collect the sparge
> >in a seperate bucket.
> >I should then have approx 5 gallons of high grav and about 6 gallons
> >low gravity liquor.
> >
> >how do I predict gravity / volume before and after boils?
> >If I'm shooting for OG 1.05, and my 6 gallons are say 1.045, how much
> >should I expect to collect in order to get 1.05.
> >Are there formula for this?
> >
> >TIA
> >
> >~Matt
> >
> >[/color]
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