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8846SV: SV: [Distillers] Re: Vacuum in glass bottles

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  • Johan
    Feb 1, 2003
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      It is a normal still but the air in the still is removed with an air
      ejector or vacuum pump.
      When the pressure is low, alcohol and water will boil at a lower
      temperature (room temperature if the pressure is low enough) The
      advantage is that the quality should be slightly better and warm water
      is enough to make the mash boil.
      The disadvantage is that it is more difficult to cool down the vapor
      (since it is cooler) and the still needs to be 100% airtight. The vapor
      rush through the still faster and that's bad.
      Personally I see it as a fun experiment, and I'm curious about the
      quality. Theory is one thing, but practice another, some have had good
      experience with vacuum so personally I think it's worth giving a try.
      Using two bottles, with a little heat on the one containing mash will be
      a simple but maybe good enough still. For some reason it is fun to watch
      the mash boil in room temperature :)


      hey everyone. theres been alot of talk about vacume stills here lately
      but i
      have no idea what one is because i just recently heard of them in this
      group. could somone plz explain it to me so i can understand what im
      a bit more?
      -thanks for reading

      >From: "Johan" <kaffekopp@...>
      >Reply-To: Distillers@yahoogroups.com
      >To: Distillers@yahoogroups.com
      >Subject: SV: [Distillers] Re: Vacuum in glass bottles
      >Date: Fri, 31 Jan 2003 17:36:24 +0100
      >Thanks all for advice about the glass containers.
      >I'll use 2 glass containers connected by a hose.
      >The heated glass container will be heated by 45 degree water around it.

      >The other one act like a condenser. Just air-cooling.
      >When the summer comes I'll use a black container and a transparent one,

      >the black will be insulated by a thin layer of underlay foam (more or
      >less transparent) or a plastic bag. I just want to see if how long it
      >will take to produce something in sunlight with that. As long as the
      >one containing mash will be something like 10 degrees warmer than the
      >condenser, vapor move from that one to the cooler container.
      >I´ve bin using a 5L. glass container as a alc. reciever and it holds up

      >fine. I´ve bin thinking about making a vacuum still from a 68L. glass
      >container. It could burst, it´s possible. I´ll just have to check.
      >Glass thicknes is certanly importnant.
      >How to you intend to heat up the mash?
      >Glass does not "deliver" heat as well as s.steel and therefore I am
      >not really keen on using a water jacket.
      >Glass is in some way a strange choice but as far as I´m concern
      >seeing the mash boil and vaporize is a desirable thing in this
      >Any thoughts?
      >--- In Distillers@yahoogroups.com, "peter_vcb <viciousblackout@y...>"
      ><viciousblackout@y...> wrote:
      > > Johan
      > > i have had 2 glass jars break, one from pressure and one the
      > > just fell off when filled with water and lifted, they are weak. if
      > > you insist on doing it i would wrap it in masking tape to if it
      > > cracks it wont fly everywhere, use clear tape if you want to see
      > > inside
      > >
      > > --- In Distillers@yahoogroups.com, "Johan Hemberg" <hemberg@h...>
      > > wrote:
      > > > Hi
      > > >
      > > > I'm testing vacuum setup now.
      > > > I have a gallon bottle in glass that I want to use because it's
      > > > transparent. But I'm a little worried about implosion. wouldn't be

      > > > so nice.
      > > >
      > > > How strong is glass?
      > > >
      > > > I've tested in small bottles and that's no problem.
      > > >
      > > > Johan
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