Reply To: Portable Matza Oven Home › Forums › Yom Tov › Pesach › Portable Matza Oven › Reply To: Portable Matza Oven March 4, 2013 5:03 pm at 5:03 pm #935696 rebdonielMember You need a really hot oven (like 900 degrees) so that the matzah cooks almost instantaneously to avoid any chashash of chometz.