Carbon on tips
I would guess any good metal polish like; neverdull, simichrome, bluemagic, flitz, turtlewax chrome polish, mothers metal polish would work. The great thing about stainless which I believe the tips to be, is the durability. I think any metal polish could not hurt. Just don't use abrasives like steel wool or chemicals like acids.
You can use steel wool, but make sure its 0000 or 00 nothing higher or it will cut into it. Metal polish works a charm, if you wash them regularly you wont have a problem. But if its burnt on there after months of use....take our your elbow grease and hop to it!


