1st try letak air sejuk coway dlm warmer tanpa letak botol susu 5min utk 45deg. BUT lps ltak botol susu 2 oz, suhu drop skit je & 2min after dpt 45 deg.tp air dlm botol x panas.sejuk.So kena rendam more than 10min utk dapatkan suhu botol 45 deg.xde bunyi utk notify suhu dah achieve.