Tacos are made of warm water. Mix corn flour and salt first, then add appropriate amount of warm water and knead into dough. Then divide the dough into several small balls, roll them flat by hand to make pancakes, and then fry them in a pan or pancake pan. If boiled water is used, it will affect the texture and taste of dough, and it is not easy to make thin and elastic tortillas. Using warm water can also make dough easier to knead, achieve better softness and toughness, and make more delicious tortillas.