The Tommee Tippee Perfect Prep & Formula Feed Maker Set Makes a perfect bottle temperature feed in just 90 seconds (Based on a 5oz feed, room temperature water tank, refers to time from start of hot shot to completion of cool shot). Comes with a milk storage lid, a 150ml Natural Start baby bottle and an antibacterial filter that lasts up to 3 months, your machine will let you know when it's time to fit a new filter. It's quick, quiet, and scientifically proven to make a fresh formula feed as safely as the NHS method.Baby bottle preparation, made even more perfect 1. Scoop formula powder into a sterile bottle 2. Select feed size on the one-touch dial 3. Press the power button to add the hot shot 4. Twist on a milk lid, and swirl to mix 5. Press the power button to add the remaining cool filtered waterThe Tommee Tippee app is updated regularly to improve performance. By always using the latest version, you can make sure your Perfect Prep machine has all the latest features and continues