26479Re: Trial Run on Reflx Column

Expand Messages
• Jan 1, 2005
--- In Distillers@yahoogroups.com, suitcase1499@a... wrote:
>
> This was 50 liter turbo sugar wash and planning just a once
through job. I do
> some test on when to take the heart on some mostly by smell and
taste. I f I
> run it hotter I will lose alot of %ABV right ??? Thanks
>
> Suitcase

Ok. There's a couple of things you need to get your head around.

1) The volume of a column is Pi x R^2 x Ht.
For a 1.5" column that's 46 cu.in.
For a 2" column that's 81 cu.in.
There's a considerable difference for a slight increase, no?

2) For any given power input, if you halve the column volume, as in
the above, then the vapor speed up the column will double. This of
course means less purity of product. It also means that product
takeoff through a column & liebig (or any setup) is limited by the
harmonic balancing of power input and column capacity Just throwing
monster condensers at the problem doesn't cut it. Slow vapor speed
is crucial to a clean product, be it whiskey or vodka or whatever.

Regarding tests:
The accepted throw-away for 25L beer is 50ml. It then follows that
for 50L it would be at least 100ml, no? But smell is always a
deciding factor. Heads is a different matter. It can be as much as
30% of the run, or as little as 10%. The only way to determine it
is to take small samples (20ml) and dilute them with 2 volumes of
distilled water (40ml). If it's cloudy, it's still heads. If it's
clear, it's hearts. That's how the Scottish Malt distillers test in
the spirit safe (they use larger samples, obviously). The trick is
being able to take just a LITTLE of the last of the heads to give a
distinct note to your whisky. One way is to collect the heads in
small containers, say 200 ~ 300ml, and then take the LAST one to add
to the genuine hearts.

If you can understand all of the above ramblings, we'll make a
stillman outta you yet. :-))

HTH
Slainte!
regards Harry
• Show all 8 messages in this topic