Hi Kathy, We use bulk desiccant (not in bags) in a cartridge to dry air going into our photoplotter. We bake the desiccant every 2 days for 45 minutes at 200 deg./F in a 9x12 glass baking dish. The desiccant lasts 6 months to a year, at which time the crystals take on a yellow tint & the blue "dry indicator" crystals no longer turn blue. Regards, Mark -----Original Message----- From: Kathy Kuhlow [SMTP:[log in to unmask]] Sent: Monday, June 02, 2003 12:46 PM To: [log in to unmask] Subject: [TN] Desicant Can desiccant bags be baked or microwaved to remove the accumulated moisture? I used to know of a recipe to microwave desiccant bags to drive the moisture off but can't remember what it was. Although it has been some years now so I wonder if it is still possible. TIA Kat --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------