"Good for people thinking of their Carbon Footprint" star star star star star_border I have a number of Sodastream Cylinders (26982) however wanting to be more Carbon responsible, I picked up a few of these Aarke Cylinders from my local store. Does it taste the same? yes, why would it be different. Is it worth the extra costs? Not really. Does it make you feel better of using it? Kinda. Maybe in the future if we get taxed for carbon impact it could be worth it.