How to sharpen the blades on a potato chip cutter?




Have a Starfrit cutter and it is getting more difficult to push the potato through the blades. Should I be treating the blades with something to improve the process?
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Really no way to sharpen the blades. All you can do is order replacement blades.
I agree with William. Couldn't find anything concerning sharpening the blades. Just order a replacement. Amazon.com seems to have a large selection and good prices too.
Cutting silver foil is meant to sharpen scissors and hole punches so perhaps pulling it through the peeler and using the blades to cut it would help too if you can make it work?