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  • Peter Huisman
    Stainless steel (or copper) pot scrubbers have an extremely high surface area and are recommended for the columns of reflux stills. A metre long x 50mm
    Message 1 of 12 , May 2, 2010
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      Stainless steel (or copper) pot scrubbers have an extremely high surface
      area and are recommended for the columns of reflux stills.

      A metre long x 50mm diameter (40" x 2") column is recommended to be
      packed with 17 or so scrubbers.

      SS scrubbers cost around $2 for 6 from 2 dollar shops. In their original
      shape (not unrolled), pack them into the column using a broom handle
      with a 40mm disk screwed across the end. Slide 1 into the column from
      the bottom end then push gently until it reaches the (Nixon Stone)
      condenser takeoff. The rest are then inserted 2 or 3 at a time until
      resistance is felt. They always almost fill the column. To remove them
      for cleaning, fish them out using a length of wire with a small hook
      bent at one end.

      The scrubbers eventually "knit" together, so before re-inserting them,
      just cut them apart using scissors.

      For tech type info look at Tony Ackland's site:

      Home Distillation of Alcohol >Theory >Reflux Still Design Theory
      >Packing HETPs

      Lots of questions answered there.
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