HOMEBREW Digest #5326 Thu 01 May 2008

 

	FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
		Digest Janitor: pbabcock at hbd.org


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Contents:
  Fine layer of powdery stuff on top of stored yeast? (stevesveil-hbd)
  Home Brew for the Car, Not the Beer Cup ("Pete Calinski")
  Re: Forgot to record the starting SG (phase)


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Date: Fri, 25 Apr 2008 13:50:57 -0700 (PDT)
From: stevesveil-hbd at yahoo.com
Subject: Fine layer of powdery stuff on top of stored yeast?

Hi all,

I've successfully been washing yeast in sterile water for sometime now.
Separating the trub from the yeast happens quickly.
Typically within 15 to 30 minutes.

However it can take several days for the water/spent beer mixer to drop clear.
When it does drop clear there's a fine layer of powdery white stuff on top.
Does anyone know what this white stuff is?  Protein?

Thanks,
Steve Seeley
in Shingle Springs CA, between Sacramento and Tahoe on Highway 50


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Date: Mon, 28 Apr 2008 11:14:07 -0400
From: "Pete Calinski" <pjcalinski at adelphia.net>
Subject: Home Brew for the Car, Not the Beer Cup

Home Brew for the Car, Not the Beer Cup

from the New York Times (Registration Required)

What if you could make fuel for your car in your backyard for less than you
pay at the pump? Would you?

The first question has driven Floyd S. Butterfield for more than two
decades. Mr. Butterfield, 52, is something of a legend for people who make
their own ethanol. In 1982, he won a California Department of Food and
Agriculture contest for best design of an ethanol still, albeit one that he
could not market profitably at the time.

Now he thinks that he can, thanks to his partnership with the Silicon
Valley entrepreneur Thomas J. Quinn. The two have started the E-Fuel
Corporation, which soon will announce its home ethanol system, the E-Fuel
100 MicroFueler. It will ... sell for $9,995 and ship before year-end. The
net cost to consumers could drop by half after government incentives for
alternate fuels, like tax credits, are applied.

To read more: http://www.nytimes.com/2008/04/27/technology/27proto.html

Or: http://snipurl.com/2611b




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Date: Tue, 29 Apr 2008 20:56:39 -0600 (MDT)
From: phase at booyaka.com
Subject: Re: Forgot to record the starting SG

stencil wrote:

> The usual rule of thumb is 42 point-gallons per pound of honey

and Scott Birdwell wrote:

> honey generally has about the same density as malt extract, so:
> 1 lb. honey/water to 1 gallon = 1.036

So who is (more) correct?  I know, it depends on the honey, but in 
general, is it closer to 36 or 42?

Regards,
phase



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