Desiccant
Overview
Desiccant (a moisture absorbing compound), can be a good thing to use if your PCB is at risk for condensation.
Recharging Desiccant
Desiccant can be re-used, just by drying it in the oven.
Put in on an oven tray.
![](/assets/images/dessicant-on-oven-tray-1c517790d61cead886289bd49be23b2c.jpg)
Set the temperature to 125°C.
![](/assets/images/dessicant-setting-oven-temp-98d65a14820a82e5c98d59c1da2ece8c.jpg)
Set the timer to 5 hours.
![](/assets/images/dessicant-oven-timer-5-hours-5c3b6a8090754329b151216d61098e4b.jpg)
Be warned though, some packs of desiccant can't handle the heat from re-drying! The packs which exploded/melted in the picture below where all the same brand, and the desiccant packet felt plastically rather than the other that felt more like paper.
![](/assets/images/dessicant-exploded-in-oven-9f363352b4e8c46aaa159a037375db7e.jpg)