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RE: [Distillers] Question about yield

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  • Lars Norberg
    Ok, so around 4 liters of 92% alcohol from 8 kg of sugar. Well, I m still pretty far below, but not by more than perhaps 1 liter though. But 4 liters of 92%
    Message 1 of 9 , Feb 3, 2002
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      Ok, so around 4 liters of 92% alcohol from 8 kg of sugar.
      Well, I'm still pretty far below, but not by more than perhaps 1 liter
      though.
      But 4 liters of 92% alcohol is a pretty bad result also, as the
      mash then only would be barely 15%, and it should be closer to 20 than
      that.

      -----Original Message-----
      From: Pete Sayers [mailto:brubarn@...]
      Sent: den 4 februari 2002 22:22
      To: Lars Norberg
      Subject: Re: [Distillers] Question about yield

      Not 100% but bloody close, 92-92% average.
      Pete
      ----- Original Message -----
      From: "Lars Norberg" <lano1701@...>
      To: <Distillers@yahoogroups.com>
      Sent: Monday, February 04, 2002 1:38 AM
      Subject: RE: [Distillers] Question about yield


      > And now you are talking about 100% spirits?
      > Ok, then there must be something wrong with my process, time for some
      > evaluation.
      >
      > /Lars
      >
      > -----Original Message-----
      > From: Pete Sayers [mailto:brubarn@...]
      > Sent: den 3 februari 2002 22:37
      > To: Lars Norberg
      > Subject: Re: [Distillers] Question about yield
      >
      > Lars, with a Still Spirits Turbo Extra, the rule of thumb, when using
      a
      > "Fractionating Column Still", take off half in litres, the weight of
      > sugar
      > in the wash,ie if you have used 8 kgs sugar, then take off 4 litres of
      > spirit.
      > Pete
      > ----- Original Message -----
      > From: "Lars Norberg" <lano1701@...>
      > To: <Distillers@yahoogroups.com>
      > Sent: Saturday, February 02, 2002 1:14 AM
      > Subject: RE: [Distillers] Question about yield
      >
      >
      > > I use 8 kg of sugar for 25 liters of mash, so according to your
      > > theoretical calculation I should be getting around 8*610 = 4.8
      liters,
      > > which adds up pretty well to upwards of 20%.
      > > Of course there will be losses, but is it reasonable to get around a
      > 50%
      > > loss?
      > > If I really push the distillation going as high in temperature as I
      > > possibly can I probably could get somewhere around 2.5-3 liters of
      > > output from those 25 liters. Doesn't sound too good does it?
      > > And the mash has to be pretty close to 20% as the density readings
      are
      > > low and there is basically no sugar left in it.
      > > Or could there be a leak in the fermentation vessel perhaps? So that
      > the
      > > yeast has access to oxygen and thereby ferments the sugar to only
      > water
      > > and carbondioxide? I do not think that this is the case, but it
      could
      > be
      > > a possibility, right?
      > >
      > > -----Original Message-----
      > > From: Tony & Elle Ackland
      > [mailto:Tony.Ackland@...]
      > > Sent: den 2 februari 2002 01:38
      > > To: 'Distillers newsgroup'
      > > Subject: RE: [Distillers] Question about yield
      > >
      > > > I assume that the mash is 15-20% as I use the specified amount of
      > > sugar
      > > > for a 20% mash (using a 20% turbo) and run it until it reads
      around
      > > > .990.
      > >
      > > Double check the amount of sugar they ask you to use. Just because
      > the
      > > advertisment says it can do XX%, doesnt always mean their
      instructions
      > > will
      > > get you there.
      > >
      > > Eg : the max yield (theoretical) you can get off sugar is 480 g per
      > 1kg
      > > of
      > > sugar. 480g = 610 mL
      > >
      > > Still Spirits Turbos
      > > "Turbo" - pack is grey/purple on gold background
      > > recommend 6kg for 25L. This will only make a max of 6 x 610 = 3.6 L
      > > pure
      > > alcohol, which as 3.6/25 = 14.5%
      > >
      > > "Turbo Extra" - blue pack
      > > recommend 8kg for 25L. 8 x 610 = 4.9L; 4.9/25 = 19.5%
      > >
      > > Interesting enough, neither pack actually says what % to expect from
      > it.
      > >
      > > But there will always be some other losses. Not all the sugar may
      > > ferment;
      > > some of it goes into growing more yeast too.
      > >
      > >
      > >
      > > > I suspected that there might be a leak in the still or something
      > like
      > > > that, but I did not find any.
      > > > If you subtract the heads and tails from those 3 liters, how much
      is
      > > > there left? Do you keep and use 3 liters or is that the total
      amount
      > > you
      > > > take out from the still?
      > >
      > > The heads are < 100 mL, and the tails are usually < 500 mL. I
      collect
      > > the
      > > tails all the way form 82C up to about 96C - eg at that stage
      they're
      > > only
      > > about 35%. So the collected good stuff is say around 2.8L if I'm
      > > expecting
      > > 3L, but I figure the other 0.2L I'll get next time from the recycled
      > > tails.
      > > The tails get recycled into the next batch, the heads are thrown
      away.
      > >
      > > > Any ideas what could be going wrong?
      > >
      > > Do you know the starting OG of the wash ?
      > > How long do you run the still for, what heat input,
      > > what % do you collect at,
      > > when & how do you decide to finish a run ?
      > >
      > > Tony
      > >
      > >
      > >
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