Technically, yes. You should wash your rice to remove extra starch that is on it. The extra starch tends to make the rice come out a bit gummy with the grains stuck together. However, I will say that I don't usually wash my rice before cooking it. The result of stovetop rice is usually gummy and sticky. But, the rice that is cooked in the Ninja Foodi did not come out sticky at all and I did not wash it.