How do the big boys do it? Knowledge wanted.(Carbon filtering)
- So, how do the smaller commercial vodka distilleries(pot distillers
like Charbay or Tito's, etc...)use carbon to filter their products?
Are they using a plate and frame filter with carbon pads, or do they
have some other way/method/equipment to filter?
- --- In email@example.com, "pguy40" <pguy40@y...> wrote:
> So, how do the smaller commercial vodka distilleries(pot
> like Charbay or Tito's, etc...)use carbon to filter theirproducts?
> Are they using a plate and frame filter with carbon pads, or dothey
> have some other way/method/equipment to filter?dunno about the smaller concersn. Maybe you could email them and
> Peter G.
ask? However, this is how it's done at Johnnie Walker in
Whisky in the reducing and colouring vats is chilled down to 2°C by
in-line flash chilling just prior to starting filtration. This will
cause haze particles to form, which is known as chill haze. This
chill haze must be formed prior to filtration so that it can be
filtered out efficiently at this stage. Without chill filtering
there is potential that the whisky will throw a haze in the final
From the reducing and colouring vat the whisky is filtered into the
bright whisky vat and at that stage is ready for packaging.
Filtration occurs on two stage plate and frame filters. The first
stage, or rough stage of the filter, will remove particles of up to
5.6-micron particle size. Secondary, or polishing side filtration,
will remove particles down to 1.4-micron particle size.
The materials that will form a haze in whisky are various, and the
quantities and types of haze forming particles in the whisky will
vary with origin and processing methods used on the whisky. The
principal haze forming constituents are barrel char and lipid. The
whiskies used in the blend that are from malt distilleries will
contain relatively high percentages of semi-soluble fatty acids from
autolysed yeast that will throw haze, and all whisky contains
insoluble colloidal material from the casks, known as char. The
rough stage of the filter will remove the char and the polishing
side the fatty acids.
Summer Research Intern
MSc Candidate Brewing and Distilling
- I've been curious about the same thing. Here is what I found out at
SilverCreek Distillers in Idaho, where they make potato vodka. In
their process the carbon is combined with minerals. At Silvercreek
this mineral is garnet which is the same stuff in really expensive
sandpaper. From what I understand the garnet does nothing for the
polishing of the spirit but rather assist in the process much like a
catalyst does in a chemical reaction. I suspect the garnet addition
to the carbon keeps the carbon from clogging. Silvercreek also uses
a pretty unique 3 column still with what appears to be two
Further information on Silvercreek's Teton Glacier Vodka is available
at the following links: