"Lum" > wrote in message
...
> Andrew,
> Thank you for the post.
> I do testing for several small, local wineries. By the time a wine has
been
> racked two or three times and filtered once or twice, the CO2 content is
low
> and it is seldom an issue.
> Are you using CO2 in the headspace?

Yes, we're maintaining CO2 gas cover on our tanks. I'd like to use argon,
but it's too expensive.
I am more concerned about oxygen pickup than high CO2 levels, therefore I
use the nitrogen method to reduce CO2 prior to bottling.
> Some wineries like spritzy white wines. Are you deliberately maintaining
> high CO2 levels and then adjusting down to near the tax limit at bottling
> time?
Not tax limits, as they don't apply to us in Oz. Instead we have high levels
because of gas cover, and reduce to get the right taste.