Unleash your craving for effervescence with the Sparkling Water Maker. Designed to combine innovative functionality and distinctive design, this machine makes creating sparkling water a simple, intuitive, and refined gesture thanks to the uniqueness of its front knob. Fill the Tritan Renew bottle to the fill line, twist it onto the machine, and rotate the front knob clockwise 1, 2, or 3 times depending on the amount of carbonation you desire. Untwist the bottle from the machine, and your sparkling water is ready to serve. While not included, this is compatible with the 14.5 oz CO2 canister with the standard screw type. Simply lay the machine on its side to insert the CO2 canister in through the bottom of the machine and twist clockwise to lock it into place. There is a hidden MySmeg Assist QR code under the drip tray lid that will bring you to helpful videos. It comes with one 1 L Tritan Renew bottle; additional bottles are available for purchase. Warning: never carbonate substances other than pure water. Do not add pieces of fruit, vegetables, or herbs to the bottle before carbonation.