cleaning with moose milk formula and finalizing and storage with a good layer of Ballistiol is your friend
Moose milk cuts the salt, and straight balistrol cuts the sulphur.
I use simple green and water for a soap because it does not have salt like most detergents.
I let laundry soap and water sit in a barrel for an hour, it was alsmost ruined from salt. It was some Oxy brand. Anyway the cleaner could also be an issue.
