Re: modern grappa still
- Ciao Riku.
I made three alhambics.
Let me talk about the first I made.
Boiler capacity 25 lt. - material AISI 304 (stainless steel)
Column heigh 65 cm - diameter 60 mm - material copper - thickness 0.8
Package three kind of package: labyrinth plates (normally 6) copper
made, perforated plates (normally 5) AISI 316 L (stainless steel),
Rashig rings of 8 and 10 mm diameter copper made.
Reflux very elementar (but I wanted to have that one very simple
because I don't make vodka) made by a copper tube 12 mm diameter
crossing the column at 8 cm from the head.
Three thermometers: one on the boiler, one placed at bottom of column
and one placed on the head of the column.
A worm made by a tube 14 mm diameter made in AISI 316 L (stainless
Lyne arm ( we call it swan neck) in copper and diameter 16 mm.
I use it to distil only liquids.
Distilling second wine at 10.5 % alcoholic degree I get from 54 lt of
that wine (red wine) about 4.2 - 4.5 lt of acquavite at about 70 -
73 % alcoholic degree.
This because I toss a lot of heads and talis.
I start to collect only when the head thermometer is at about 79 -
79.5 °C and, at the same time, the alcoholometer (Gay Lussac
alcoholometer) sign about 84 - 85 % alcoholic degree.
But the last judge is my nose and my tongue.
I stop to collect when the head thermometer is about at 92.5 °C,
sometimes I arrive to 93 °C but for a short time.
At the same time the alcoholic degree is at about 60 - 58 % and the
boiler temperature is about at 97 °C.
Anyway, also here my nose and my tongue are the last judges.
I hope to be useful.
Ciao a tutti
--- In Distillers@yahoogroups.com, "abbababbaccc" <abbababbaccc@...>
> It would actually be interesting to know the effects of internal
> reflux to a potstill. This should be quite easy to estimate from a
> standard whiskey mash ~7-8% ABV by the ABV of low wines and the
> percentage of mash you collected as low wines. I usually get some 4
> liters at ~30ABV from a 25 liters mash. This is with about 50cm
> straight and empty column made of 42mm copper pipe and with 2kW
> Anyone else wishing to share their setup? Maybe we can collect some
> kind of a database to compare still constructions and results. This
> would allow easier duplication of traditional whiskey runs using
> easier to build equipment.
> Cheers, Riku
> --- In Distillers@yahoogroups.com, "miciofelice2003"
> <miciofelice2003@> wrote:
> > Ciao Wal.
> > Yes, but in my opinion this helmet is, mostly, an historical
> > of the old alhambics. A little bit of reflux can be there, but
> > little ...
> > >