This graph shows the TCA transmission rate for natural corks containing up to 10
ng/L of TCA coated with Bacchus Barrier™. Despite such levels of TCA in the cork,
TCA in the wine remains below discernible levels for up to 4 years.
The Bacchus Barrier™ - Oxygen Performance
Bacchus Barrier™ has a barrier performance to oxygen of 2.0 cc/ m2/ day. This means
that there would typically be an oxygen transmission rate of 0.0005 cc per cork per
day through the Bacchus Barrier™. Corks with faults such as cracks, which would otherwise
allow high levels of oxygen to permeate, show greatly improved performance when coated
with Bacchus Barrier™. The overall effect depends on the cork employed, the diameter
of the bottle neck and other factors such as the quality of the glass used.
Bacchus Barrier™ also helps prevent random premature oxidation due to the natural
variability of corks. As a result the winemaker can have confidence that for a given
cork type he will see consistent results.