The Perfect Prep Day & Night Machine is designed to make bottle-feeding your baby a breeze. It preps the perfect bottle in just two minutes, for stress-free feeding at any time of the day or night. It dispenses the correct amount of water for a more accurate and consistent dilution, with the filter system removing any impurities, and a ‘hot shot’ of water then kills any bacteria that may be present in the formula. The Tommee Tippee Perfect Prep Day & Night Machine makes bottle feeding a dream, right around the clock.