How do you keep the inside of a safe dry?

I have a fireproof safe. Some of the papers in it seem to be getting a slightly musty smell. The room it's in is dry enough. Is there something you can put in there to take moisture out of the air?

Answers:
Put a few packs of dessicant inside the safe... it's the little packages inside electronic goods marked "Do Not Eat"...

Other answers:
you could try a big pack of silica gel. That's the stuff in the little white packet when you buy a camera and such. It abosorbs moisture. That's all it does.
you could try a big pack of silica gel. That's the stuff in the little white packet when you buy a camera and such. It abosorbs moisture. That's all it does.
Try placing a de-humidifier in the room.
get some silica and put it in a bag suppended over a plastic container. The silica will absorb water and let it drip into the container
You can use baking soda; it lets you know when to replace it also a light jell on the seal should help.
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