Had similar issue until I focused on managing the safe's humidity level...add dessicants, perhaps another golden rod, and a good hygrometer. Keep the humidity ~45% or less.
Tough to do in an unheated space...I keep the shop @ 50* when not working.
Clean the mold with lemon oil, or preservative of choice, and beware of rust if you have mold growing....others will chime in...just my two cents...
|