many consumers are still partial to carbonation machines like the SodaStream, to make sparkling water or sodas right in their own kitchens. However, if you've ever used one of these machines ...

We tried the Ninja Thirsti Max Custom Hydration System and four of its diet soda flavors. See how well this appliance produces quality drinks at home.

To connect the bottle to the machine, the SodaStream E-Terra uses Bottle Snap ... but the only main difference I could see was the three carbonation levels. Other than that, the two sparkling ...

PepsiCo's SodaStream has attracted consumers for years in many European countries, such as Germany, where it introduced Mountain Dew- and Pepsi Max-flavored syrups for its machines earlier this year.