Review on ISi Sodamaker Classic Siphon Bottle by Ray Sheptock

*edit - I found out today that sparkling water and seltzer are not the same according to iSI customer service: this machine makes sparkling water which is more of a taste while our Soda Stream makes seltzer that's fizzy. in your mouth like pop rock This explains why water is flat in comparison. Thank you for your answer, iSi! More closed and airtight than our old soda bottles, we thought it had a much stronger soda flavor. Unfortunately, although it looks like it (visually), it doesn't taste very fizzy. bite) and just taste. Overall it looks and feels great! Would be nice to show and use at a party (if it ever happens again). We need to compare experiences with guests in the future to see if they were expecting more bites.