So you all know that I can swallow air to make Myself belch. But I have never tried to swallow as much air as I possibly can first. I've swallowed a lot of air before, but never really pushed it. So here I am swallowing as much as I can until My stomach is sticking out and in pain. And even then I attempt to swallow more air! Until eventually the longest, loudest and most obnoxious belch escapes My mouth. I have three of these! That's how long I'm swallowing air until I burp each time.