How to clean a sticky knife

Q. Whenever I go camping I always cut oranges with my knife. But then my knife sticks and is hard to get open. What is the best way to de-stick my knife?
— Sticky Fetzko, Munhall, Pa.

A. First, try licking the juice off the blade … wait, bad idea! Very bad idea.

Here’s what my friend Jeff Freeman, a big-time knife designer with Gerber Legendary Blades, recommends: “Wash your knife in warm water with simple dish soap. This will get the acid off. Be sure to get any gunk out of the knife’s locking mechanism. (Try using a toothpick.) Then, towel it dry or let it air dry.

“If you live by the coast where there’s lots of salt air, dab a little motor oil on a rag and rub it onto the blade. Finally, wipe it off with a towel.”