Comments on: Beer-to-Ethanol Triple Threat Teams Karl Strauss, GreenHouse, and E-Fuel http://cleantechnica.com/2009/07/21/beer-to-ethanol-triple-threat-teams-karl-strauss-greenhouse-and-e-fuel/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Tue, 30 Dec 2014 11:57:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: Cornell Researchers Make Biofuel from Beer Broth http://cleantechnica.com/2009/07/21/beer-to-ethanol-triple-threat-teams-karl-strauss-greenhouse-and-e-fuel/#comment-125194 Thu, 28 Jun 2012 12:31:41 +0000 http://cleantechnica.com/?p=2855#comment-125194 […] microbrewery Karl Strauss got a jump on things a few years ago, when it started up a venture to convert its waste yeast to […]

]]> By: Forbes http://cleantechnica.com/2009/07/21/beer-to-ethanol-triple-threat-teams-karl-strauss-greenhouse-and-e-fuel/#comment-6132 Thu, 23 Jul 2009 13:03:48 +0000 http://cleantechnica.com/?p=2855#comment-6132 I am confused, yeast is the converter in the feedstuff to ethanol equation. All Karl Strauss seems to be doing is offering a cheaper (?) source of yeast for the microfueler to work with. But the yeast from Karl Strauss is unlikely to be good enough to do this properly given that it has already fermented beer several times.

Moreover, as a ferment feedstock yeast from the brewery is no more than 20% fermentable, if you treat it as a chemical. Overall this sounds like a poor concept.

]]> By: Forbes http://cleantechnica.com/2009/07/21/beer-to-ethanol-triple-threat-teams-karl-strauss-greenhouse-and-e-fuel/#comment-23586 Thu, 23 Jul 2009 13:03:00 +0000 http://cleantechnica.com/?p=2855#comment-23586 I am confused, yeast is the converter in the feedstuff to ethanol equation. All Karl Strauss seems to be doing is offering a cheaper (?) source of yeast for the microfueler to work with. But the yeast from Karl Strauss is unlikely to be good enough to do this properly given that it has already fermented beer several times.

Moreover, as a ferment feedstock yeast from the brewery is no more than 20% fermentable, if you treat it as a chemical. Overall this sounds like a poor concept.

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