How Far Should I Fill My Keg?

Question

After months of bottling, I have decided to start kegging my beer. It will be a couple of weeks before I have something to keg but I am curious as to how full I should fill a keg.

I’ve heard that one should fill the keg no more than to just below the gas in line/tube, specifically I was told to keep the beer an inch or so below the end of the tube.

Is this correct?

Answer

I’d say that was some pretty good advice. If you fill your keg too full, then lower the pressure on the keg, you could get some beer sucked up into the line, which would make a possible breeding ground for bacteria.

You don’t want your gas line harboring a bunch of bacteria and mold. So until you’ve got the knack for kegging, I’d say stick with that advice.