Sapphire Wafers. Lithium Niobate Wafers. Sapphire is a material of a unique combination of physical, chemical and optical properties, which make it resistant to high temperature, thermal shock, water and sand erosion, and scratching.
Put a tortilla on a plate, covered with a damp paper towel. Alternate tortillas with paper towels. Microwave for 30 seconds to one minute, depending on how many tortillas. Preheat the oven to 250 degrees. Wrap a stack of tortillas in a damp dish towel and place in a casserole dish of similar size. Cover with a lid or a piece of aluminum foil tightly on the dish. Place in oven for 20 minutes. Once the tortillas are heated, transfer them to a tortilla warmer to keep them nice and hot.
Then place the white corn tortillas right on the grate. For those with electric ranges, itâs a bit harder to get the tortillas toasted; use a heavy-bottomed skillet thatâs heated to medium-high heat. The tortillas will begin to puff slightly as they bake, flip after about 1 minute then toast on the other side. Last step, and this is important for flexible tortillas, place them in a tortilla warmer or a kitchen towel.