Spirit Stills and Reboilers?

[djrussobik at AOL.COM]

Is this (or could this be) how the second distillation in a doubler/thumper in some Bourbon distilleries also is accomplished?.  I never quite figured out how this step actually was implemented -- it certainly seemed to be distinct from both the traditional pot-stills and column-stills, and not obvious if there was a direct source of additional heat.   Any one know how THAT distillation/step is performed?
 
  Thanks and Slainte!
    Dave in Boston
 
 
-----Original Message-----
From: ake.j-son at BREDBAND.NET
To: DJRussoBik at AOL.COM
Sent: Wed, 2 Aug 2006 7:12 PM
Subject: Re: Spirit Stills and Reboilers?


Hi again,

Another speculation: the liquid of the second step may also be more
volatile due to higher alcohol contents thus boiling at lower temperature.

Åke

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