How can I keep my corn cob holder handles from rusting?
Make sure you dry them right away and keep them in a dry place. When you buy replacements, choose stainless steel.
One way to clean rust on corn cob older is baking soda. Just wet the holders and sprinkle with baking soda. Let it sit for an hour and scrub with steel wool. You can also store your holders in baking soda to prevent water from sitting on the surface. Or after you have used your holders, wash and dry them. Apply a thin coat of olive oil to the holders. This will help prevent rust on them.
Pat completely dry after washing. Try to store in a dry area, maybe in a container.
oil will prevent rust, hence WD 40, though for food related items you want olive oil or other edible oil like someine else commented already
Make sure you dry them really well this should prevent rust.When water and oxygen combine this causes rust.Store them in a dry place. Sometimes silverware may be wet when being put away causing your corn cob holders to rust.