I needed to practice my burps and chugging carbonated beverages before my big challenge so while I sat waiting for my hair mask to finish I decided to down a soda water and practice my burps. They start off a little quiet but soon by the end I have some thunderous ones. The carbonation definitely doesn't make it easy to chug amd my eyes water amd I get brain freeze from it being cold but all in all a good practice session before the big one.