This is something I've done before but I'm not sure if it's a reasonable practice.
Usually I dry hop a beer either during primary fermentation (warm) or post fermentation (cool/cold) in the serving keg. This means I put some hops in a SS mesh tube and put it in the keg and rack the beer on top of that. Not exactly ideal since I have no way to purge O2 until after I fill the keg.
Alternatively I've used the same SS mesh tube and just dropped it into a keg of beer that's been sitting around for a month or so. Typically this would be a situation where I've made 2 kegs of beer and I'm going to drink them in series. I figured drinking it closer to the dry hop would be better. Unfortunately this method also has some good O2 exposure.
Just curious if anyone has thoughts on this and if one way is better than another. Sometimes I can kick a keg pretty quick if I want to