I went to attach a gas line to a corny keg and saw dried up beer in it. Not sure how it got there. It's home brew, it's likely I filled the keg too much, but I would have thought that as the keg emptied beer couldn't get in the gas line due to the gas pressure. It's co2, can bacteria 'n stuff grow in there? Should I clean it before I use that line or think it can wait? (It'll be a pain in the butt to disconnect from the manifold 'n stuff). Pressure on that line was turned off when not in use (have a manifold), so not sure if ambient air got into the line or not. Thanks.
I would clean it or just replace the line which is sometime easier. Are you sure it didn't back flow into your manifold? Or even worse regulator?
I'm not sure. Why is that bad? Mainly, I'm curious how that was able to happen in the first place. I thought the manifold had an anti backflow mechanism of some sort.
If beer sits in the co2 line or manifold it will turn and get moldy. Can ruin the taste of your keg. Manifolds usually don't have the co2 shutoffs with the check valves.
At some point, the pressure in the keg was greater than the pressure in the line, forcing the beer in the overfilled keg (i.e. filled above the gas dip tube) or non-leveled keg up into the gas line.
