I have a small batch of mead that's just about done fermenting. I'm wondering if I can let it age in a growler I have. I know growlers don't hold carbonation in beer for long with just the plastic screw-on top, so I'm guessing they aren't really air-tight. This makes me think it's an oxidization risk. But is there maybe a simple way to make it air-tight? A couple wine bottles and corks might be better, but the growler is just the perfect size.