Re: New to group - question about using brass in distilling
- certain brass compounds (not all) contain a small lead content.
Having brass in the distillation process steam is relatively safe as
metalic salts wont distill out at the temperatures that ethanol is in
vapor form. However you are talking about making tinctures which
will have brass in close contact with the brass. Lead content (if
present) could -possibly- contaminate your finished product. Ethanol
is an excellant parts cleaning solvent.
The brass fitting can be cleaned by following the process on this
Hope this helps
--- In Distillers@yahoogroups.com, "kenoflife" <tcmguy@m...> wrote:
> Hello everyone,
> I just got the name of this group from a colleague, another Chinese
herbal doctor like
> myself. I hope you can help me out with a question.
> I just bought a nice large and thick 5-7-gallon glass jar made in
Italy from Costco that I
> was hoping to use for making alcohol extracts of Chinese herbs.
This involves using a
> large amount of herbs with complex chemical components, and soaking
them for periods
> of weeks to months -
> possibly even longer if fresh alcohol and herbs are added to the
mix already underway.
> The type of alcohol I'm using is still to be determined - a kind of
Chinese rice ('yellow')
> wine, or perhaps a brandy. I have the info I need to get started
> The jar has a smallish brass spigot attached to the lower part of
one side -about 6 inches
> up - it looks simple and clean, The bottle is very attractive
(hexagonal sides and bell-
> shaped top) and inexpensive ($19) -
> so it would be great to use a few of them to make tinctures.....but
> I assume that the stopper is sealed with a thin washer of plastic.
Is there a problem with
> chemical contamination - in a way that might be unhealthy...or
leakage over time. I'm
> more concerned about the contamination then if the washer will
eventually give way. I
> guess I could also replace the spigot with a glass one somehow,
through a chemist supply
> house or something.
> Do any of you know for sure the effect of the small amount of brass
upon this operation?
> Thanks for any input!
> Ken Bendat