>there are turbo yeasts available that will withstand >20%+. with sufficent vacuum you can boil water at >room temp. i would question whether the yeast's ability >to propagate (and therefore produce ethanol)would >be affected by a low vacuum.i think that you are >pursuing an interesting avenue of research. i will try >to dig up some info on boiling ethanol at different >vacuums. > regards, roger ([EMAIL PROTECTED])
Yes, interesting. Also, I think you can get 100% ethanol with vacuum distillation. Keith Addison Journey to Forever Handmade Projects Osaka, Japan http://journeytoforever.org/ > > --- In [EMAIL PROTECTED], "kirk" <[EMAIL PROTECTED]> wrote: > > > I think yeast croak or really slow down at 14% or higher.(14% > > =28proof) > > > > > That is also my understanding. The alcohol starts to kill the Yeast > > above 10%, and they are nearly all dead by 14%. > > On the temp side, 140F kills them off. > > That brings me back to the basis of my question. If I heat my > > fermentation tanks to (?)125F, so the yeast are still alive, how much > > vacuum will I need to apply to the tank, to start removing some of > > the Ethanol to keep the level below 10%? > > How much vacuum to do the same task at 100F? I would like to keep the > > Yeast alive and actively producing, without having to heat the > > massive quantities of water to do a traditional distillation. > > > > I'm trying to look ahead, at the whole process, and solve as many > > potential problems as I can see, before I start investing meager > > assets to it. I can overcome the heating problem rather economically. > > It's disposing of the heat after I've used it, that will be my > > shortcoming. I am trying to remove the heat disposal problem, by > > simply not putting the heat in to start with. > > I welcome any thoughts and commentary on my approach. > > > > Motie > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get your FREE credit report with a FREE CreditCheck Monitoring Service trial http://us.click.yahoo.com/ACHqaB/bQ8CAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
