The CO2 canisters are refilled/exchanged and not disposable. It certainly passes the smell test to me and they have a ton of info on their carbon footprint on t

The CO2 canisters are refilled/exchanged and not disposable. It certainly passes the smell test to me and they have a ton of info on their carbon footprint on the website. For me, I love the convenience of not having to go buy bottles of soda water and then recycling them after. You just fill the sodastream bottle, carbonate, drink, rinse, repeat.