I’m thinking about getting some of those activated alumina beads. I’ve heard they are both more efficient at absorbing moisture and can be recycled indefinitely without degrading. Sounds like a perfect fit for your setup.
Dry and then store in a controlled environment. I’m using those bog standard cereal containers from Amazon (3,7-4l container should do for 1kg spools). Add some desiccant, spool rollers and a hygrometer and you have yourself a semi-permanent home for your spools. Mine show somewhere between 10% and 15% humidity, so that’s pretty good considering that previously just leaving a spool in open air for a single longer print caused it to soak enough moisture to ooze and string by the end of the print, and that’s in “only” over 40% humidity. So yeah, highly recommended.
Since I’ve started automating stuff I’ve got myself an Acurite wireless fridge and freezer thermometer (initially found out about it on Reddit, before it all went to shit and all). It both has a nice magnetic display and it transmits in 433MHz band, so a SDR dongle plugged into my Home Assistant machine can receive the temp readouts. So far it didn’t prevent any disasters, but at least I know how hot it needs to get for the fridge to start having trouble keeping cool.
There’s a request made here. Haven’t seen devs reply yet though.