Q: What is the right gas for kegged wines?

A: Nitrogen

The important role of any gas on top of wine in a keg is to be oxygen free and secondly to act as a propellant in dispensing the wine through the draught wine system. Oxygen-free nitrogen is the oldest used gas for this purpose. Nitrogen is inert and difficult to dissolve into wine. Nitrogen is the most widely used gas for kegged wine.

Previous Article Q: Is wine really carbonated? Next Article Q: Why would I use nitrogen and CO2 on kegged wine?