My son was making soda the other night and I decided that I would explain the process for folks who don't do it. It is really very easy and much less expensive than store bought soda. Once you practice a little and get the proportions of sugar, flavoring syrup, yeast, and time to ferment in the bottle set to what your family likes the soda is really VERY good. Is it carbonated like "regular" soda from a store? - Yes indeed! The yeast in the soda consumes some of the sugar and creates natural carbonation or "fizz". For those of you who are "addicted" to your cola (and you know who you are!) this may fill the need if you just store back some extract because you should have the other ingredients already in storage.