So I've done some experimenting and I think I have figured it out! I have diet light soda, so it's extra bubbly! After a few sips, I belch loudly! Like really loud. So I keep chugging! The burps are so loud and long, they make Me giggle. I'm seriously impressed with the insane belches I get from the soda! And you will be too! Chugging and loud burping!