Reply To: How to kasher sinks for Pesach Home › Forums › Yom Tov › Pesach › How to kasher sinks for Pesach › Reply To: How to kasher sinks for Pesach April 7, 2015 3:29 pm at 3:29 pm #1070587 cherrybimParticipant Easiest way is to use an electric steam machine; quick, inexpensive, not messy, hotter than boiled water.