Kent wrote:

> I use a product called "Private Preserve Wine Preserve", an aerosol N2 for
> saving half consumed bottles of old wine. It would work fine for herbs. I
> have old wines, and use it all the time. Buy it at "Bev. and More". I'm
> going to try preserving herbs with it. You have to have an absolutely air
> tight container, even though N2 is more dense than air. It will leak out if
> you let it.

Actually, it's mostly a matter of O2 "leaking" in.
Since the partial pressure of O2 (~ 3 psi, as I recall) is greater
outside than inside (0 psi, if the package is filled with N2), oxygen
will diffuse in, displacing a small amount of the nitrogen you filled it
with.

Dave