Fill a quart sized ziplock bag full of uncooked, unwashed rice. The kind that you find at an Asian grocery, not Uncle Ben's or safeway, etc. Leave the baggie open and sit it at the bottom of the safe. It will suck up a crazy amount of moisture. Change it out every other month. its also good if you drop your phone in the toilet. Just throw it in the bag of rice over night. Right as rain in the morning. Sometimes it takes a couple of days for that to work though.
Ancient Chinese secret.
Ancient Chinese secret.
