Quote Originally Posted by Kenyth
CO2 is neutral enough under these circumstances. The plus is that it's a nice big heavy molecule. It tends to settle out at the bottom of containers it's stored in, displacing other gases to the top. It's also very easy to contain because of this. It's also toxic in high concentrations to most life, including many that cause spoilage.

There's some serious thinking go on today. I might have to come back tonight.