Compatible with pre-washed rice. I washed it thoroughly. There are fine scratches. As my family has grown, 6kg is no longer convenient, so I'm replacing it with a larger one. I no longer need this one. It's incredibly convenient! You don't have to bend over or take out heavy rice; you can dispense 0.5 cups of rice just by lowering the lever. It's a kitchen tool I'm glad I bought! It's stylish, so it looks cute even when placed with other appliances.