too radical...that was my thinking too, then again - for dessicant to work would require disassembly, hardly any less radical. The heating is gentle - baking is a bit of an overstatement for 50C and this chap:
http://groups.yahoo.com/group/Orion_StarShoot/message/3630
Seems quite clear that is is safe! I think your pentium processor will be at 70C right now as you read this....
See :
http://umbra.nascom.nasa.gov/eit/CCD_bakeout.html
also...