These are popular to keep kegerators dry: https://evadry.wpengine.com/product/e-500-renewable-high-capacity-dehumidifier/ https://evadry.wpengine.com/product/e

These are popular to keep kegerators dry: https://evadry.wpengine.com/product/e-500-renewable-high-capacity-dehumidifier/ https://evadry.wpengine.com/product/e-500-renewable-high-cap... It's basically just a silica gel pack, but you can plug it in when it's saturated to recharge it, and it has a wet/dry indicator.