I got these fabulous, big antique pickled herring jars at a garage sale earlier this season--cool shapes and complete with lids. They're great for storing food except that the lids are rusted on the inside which makes them hard to screw on and off. Plus the rust gets into the jar and the food which, obviously, is boo.
Does anyone have any ideas about how I could food-safely rehab the interiors of these lids? The outsides have great screenprinting on them and it would subtract a lot of the appeal if I just replaced them with new lids, KWIM?