desiccant

Some desiccant next to it to suck moisture out of the air will help - rice is famously OK for this - no need to put it in the desiccant.

Currently the only way to do that is with desiccant which needs recharging too often to be practical.

For future note, ziploc in freezer = extremely bad unless you add a desiccant to soak up stray moisture.

Calcium oxide aka burnt lime is a cheap non-toxic (but caustic!) desiccant that can keep an e.g.

Keep a desiccant pack in the car, it'll go a long way towards avoiding damp-related issues.

A tightly wrapped bag, desiccant and/or purging the container with dry gas would prevent that.

And anywhere with any amount of humidity without desiccant packets and sealed in plastic will experience corrosion of PCBs and connectors.

If not paying attention you could easily be having your noodles with added desiccant flavor.

Admittedly it is not a terribly effective desiccant, but it still has those properties.

There's likely glyphosate residues in most non-organic oats because farmers use RoundUp as a desiccant to reduce diesel fuel usage during harvesting.

You are better off soaking the wet electronics in isopropyl alcohol then trying to dry them in a bag full of desiccant.

They failed to seal it and failed to include a desiccant in that space, or just pot in the whole thing in epoxy.

So a "kit" that would entertain me would involve a ridiculously precision balance / scale, and a spectrophotometer, and a chemistry desiccant / dehydrator vessel thingy and several burettes and graduated cylinders.