Re: Volatile acidity and barrels

Dear AxisOfBeagles:

On Jan 3, 12:12 pm, AxisOfBeagles <m...@xxxxxxxxxxxxxx> wrote:
First, thank you for an excellent link.

Actually, you can thank Google... ;>)

But I fail to see where the
article suggests that ozone is a treatment for tainted barrels,
other than the Fresno study showing that ozone killed a
brett infection. If the taint, as indicated in the OP, is a VA
problem (such as an acetobacter contamination) then I still
find no indication that ozone is a treatment for such.

The link specifically states that acetobacter is killed by ozone.

http://www.oxicom.es/eng/embotelladoras_ozono_barricas.php
http://www.icwt.net/conference/Ozone/Session%20F/330-350%20Cameron%20Tapp.pdf
http://goliath.ecnext.com/coms2/gi_0199-6315926/Options-in-barrel-washing-hot.html
... (not pushing membership, nor can I read the entire article)
http://www.newworldwinemaker.com/article_content.asp?id=159
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1745-4506.2007.00047.x?cookieSet=1&journalCode=fri
http://www.springerlink.com/content/t1299uj3g2n82562/

I agree with the primary premise of the article - ozone is
arguably the most effective barrel sanitizer available, imaprts
no taint of it's own to the barrel,

... it can be a little hard on the natural epoxy binder. I remember
seeing a customer's installation that decided he did not need an ozone
destruct unit, and how his wooden shingles near the offgas vent looked
after two months...

is environmentally less imapctful than many alternatives,
and seems to have no adverse impact on the qualities of
the oak that the winemaker desires. But other than the
one study regarding Brett, this article does not seem to
suggest that ozone is a treatment for barrel contaminations
that result in VA in your wine. Does it?

See links above. Only one of which is actual peer reviewed
literature.

http://www.carlsenassociates.com/web_pdfs/W&V-O3-Article.pdf

Seems like it can be a treatment for tainted barrels also.

Ozone only has difficulties with slime-forming, colony-forming
organisms.

A "soak" probably would not be advantageous, but a vigorous spray
should place high concentration ozone near the barrel wall.

http://www.bionewsonline.com/q/1/microbial_d.htm
... gaseous ozone and treatment of viable barley for fungus

http://www.asm.org/Media/index.asp?bid=42949
... even inactivation of "mad cow" prions with ozone (which surprised
the hell out of me).

Just can't ignore the ozone offgas.

David A. Smith
.

Relevant Pages

  • Re: Volatile acidity and barrels
    ... But I fail to see where the article suggests that ozone is a treatment for tainted barrels, other than the Fresno study showing that ozone killed a brett infection. ... I agree with the primary premise of the article - ozone is arguably the most effective barrel sanitizer available, imaprts no taint of it's own to the barrel, is environmentally less imapctful than many alternatives, and seems to have no adverse impact on the qualities of the oak that the winemaker desires. ...
    (rec.crafts.winemaking)
  • Re: Volatile acidity and barrels
    ... ozone will reduce acetobacter in a barrel. ... If it is surface or near-surface, ozone is very effective at killing the acetobacter. ... I've used ozonated water in industrial applications as well as for washing wine barrels. ...
    (rec.crafts.winemaking)
  • Re: im dreaming of a black christmas
    ... produced during the rapid chemical changes, not from the ozone itself. ... the virtues of treatment by ozone, and claims that such treatment cured ... i used to subscribe to alt..arthritis, and we had a spammer ...
    (uk.media.radio.archers)
  • Re: Fluorescent ballasts anyone?
    ... Sergey Kubushin wrote: ... treatment, it's a long process... ... ozone in the pool to prevent algae appearance. ... I haven't seen a trace of algae when this thing were working. ...
    (sci.electronics.design)
  • Re: Fluorescent ballasts anyone?
    ... treatment, it's a long process... ... ozone in the pool to prevent algae appearance. ... The half-life of ozone in water is measured in minutes. ... I haven't seen a trace of algae when this thing were working. ...
    (sci.electronics.design)