I've been slowly improving my bottling, thank goodness. I make a pot of warm / hot StarSan, and fill each bottle with the mixture, then after a while, turn each bottle upside down in the StarSan pot. Then a few minutes later, I drain.
So far, I have ended up with a dense layer of small bubbles, about 1-2" high, at the bottom of my 750mL bottles. I know that leaving some StarSan behind is OK, but I wonder if I'm not doing a thorough job of draining? And if not, how do I get a clean drain without rinsing?
I found this question and answer about bottling, and this answer about foam, but I feel like it doesn't quite answer my question. Perhaps I'm being paranoid, and should just relax and have a homebrew?
I wrote this question immediately after cleaning my bottles today. Ten minutes later, the foam has settled down to about 1/2"; much less.