Yes, but I don't recommend it. They reheat kind of weird, so I don't do it. If you're interested in freezing your cooked grains, the best way is to let them thaw in the refrigerator overnight or place them into a fine mesh strainer and run cool water over them. I recommend seasoning them well while cooking because they will lose flavor when frozen. While reheating, you can freshen up your thawed grains with a little extra salt.