Is headspace a consideration when aging? I've been using stainless kegs of various sizes with dominoes. I know there's downsides to them but the upsides outweigh them for me.
I've got some 3.6L and 5L kegs and need something bigger. The options are 10L and 20L. 20 is a bit big but the price isn't much more than the 10's. If I put 10L (of say, banana rum) in a 20L keg and left it would the extra headspace cause any issues?