How do I bleach a white hat?

My 14 year old has a compulsion to own a white hat and we want to know how to clean it. I know that you can not put it through the washer because it will break it down. He wants to bleach it. Does anyone have any ideas on how to do that. Thanks

There's a device you can buy (a frame) so you can put the hat in the dishwasher. The frame will keep the hats shape...

put it in the washer and put clorox

If there is writing on it in a different color than white, then it's a little harder, if not just hand wash it in a bleach solution, if it has writing on a color other than white, then you could throw it in the washer after putting it in a bag for lingerie. I've tried the frame that you use in the Dishwasher, and I really don't like that It made my hat a little funky. Another possible solution is to wash the hat by hand with dishsoap- it works really well on many forms of grease including the natural greases and oils in hair.