Mexican cooking generally uses long-grain rice similar to favorite U.S. brands like Carolina and Uncle Ben’s. In my recipes, regular long-grain rice is usually specified when a dish is to be cooked for a fairly short period of time. Where rice undergoes longer cooking, or two separate processes such as being briefly simmered and then cooked in a stuffing or dish, I prefer to use converted rice, which does not split or disintegrate as readily. It is seldom used in Mexico.
In dishes where rice is sautéed before simmering, Mexicans are fanatical about rinsing and rerinsing it until the water runs clear. This is important in the recipe for Arroz a la Mexicana.