By introducing liquid nitrogen into the bottle after filling, wine makers reduce headspace O2 content by more than 70%. Less headspace O2 results in a significant reduction of dissolved O2 pickup. Cryotech has a complete line of LN2 dosing equipment to automate and control the introduction of LN2. A very small dose of liquid nitrogen is injected into the filled bottle. One part of liquid nitrogen warms and turns into 700 parts of gas, displacing O2 from the headspace.

Reprinted with Permission from Cryotech International, Inc