My Phantom Standard was out in a corn field for 3 weeks in some of the wettest weather, snow, wind, etc. before I finally found it. It was never totally submerged but did have water in it. Pulled the battery and tossed it, and the bird, into a trash bag with 7 lbs of rice. I did cover the battery compartment with tape. Left it there for 4 days. On day 5 brought it back out, blew it out with a cpl of cans of compressed air and shook out some of the smaller rice grains that got in via the vents. Tossed in a new battery and it has been flying like a champ, ever since. The other battery I kept and since it wasn't submerged, I decided to keep it in my battery rotation (5). So far it hasn't given me any problems. The only bummer was I located the Phantom Standard the day AFTER I went out and purchased the Phantom Advanced. The good part was the wife would not let me return it. She has become pretty proficient at flying "her Phantom". Don't over think the drying material part. While there have been some good suggestions, I have been using rice to dry out wet radios (ham gear) successfully for years. Plus you can use it more than once, if need be, Good luck.