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RE: [Distillers] Maximum sugar content

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  • Tony & Elle Ackland
    Rob, The highest sugar content that most normal yeasts can handle is about 0.25 kg/L. The turbos can go up to about 0.3 kg/L (eg 5 & 6 kg per 20L
    Message 1 of 4 , Aug 21, 2000
      Rob,

      The highest sugar content that most normal yeasts can handle is about 0.25
      kg/L. The turbos can go up to about 0.3 kg/L (eg 5 & 6 kg per 20L
      respectively). These should be starting SG's of 1.07 & 1.08. If you have
      more sugar than that present, the yeast wont be able to handle it, and
      effectively "burst" - the concentration is too strong, and it ruptures the
      cell's membranes. Like pouring salt on a slug. Deb's point too is good -
      any unused sugar present will make the mash more prone to boing over when
      distilling, and you'll have a sweet sticky mess. There's no point using
      more sugar than whats needed.

      Tony
      http://www.geocities.com/kiwi_distiller

      >
      I have a turbostyle yeast which is supposed to be good up to 18per cent
      ethonol. A sugar solution should ferment down to sg. 1.000. If you
      wanted to get the full 18 per cent is there any reason that you wouldn't
      just pour enough sugar to get it up to the full sg of 1.125 to 1.300? Is
      there some other limiting factor, assuming that you have sufficent
      nutrients to support the yeast?

      Thanks in advance for any help, rob
    • Pete Sayers
      Rob, Pete from Brewers Barn. Yeast has a few interesting properties, one of which is it will continue to produce alcohol until it kills itself. Various yeasts
      Message 2 of 4 , Aug 22, 2000
        Rob, Pete from Brewers Barn. Yeast has a few interesting properties, one of which is it will continue to produce alcohol until it kills itself. Various yeasts have been isolated for their "Alcohol Resistance" By adding too much sugar you risk, as Tony said , wash boil over or browning of the wash and resultant alcohol by the burning of unused sugar against the elements.Have fun
        Pete
        -----Original Message-----
        From: Robert Mitchell [mailto:goldgate84@...]
        Sent: Tuesday, 22 August 2000 12:42
        To: Distillers@egroups.com
        Subject: [Distillers] Maximum sugar content

        I have a turbostyle yeast which is supposed to be good up to 18per cent ethonol. A sugar solution should ferment down to sg. 1.000. If you wanted to get the full 18 per cent is there any reason that you wouldn't just pour enough sugar to get it up to the full sg of 1.125 to 1.300? Is there some other limiting factor, assuming that you have sufficent nutrients to support the yeast?

        Thanks in advance for any help, rob



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