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I am looking to make my own sweet potato fries, however sweet potatoes are harder to cut than regular potatoes.

Even more expensive cutters such as the Nemco N554503 fry cutter are not recommended for cutting sweet potatoes.

Does anyone know what makes a cutter suitable for sweet potato fries?

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Here's one that claims to be but this video begs to differ – JoeFish Aug 7 '12 at 20:20
Shopping recommendations asking for the "best" brand are not allowed, I had to edit your question. – rumtscho Aug 7 '12 at 21:00
up vote 2 down vote accepted

I have the Progressive International Jumbo Potato Cutter and it works well for sweet potato fries. The product spec for them lists "Yams" which are sometimes what sweet potatoes are called in the U.S. (technically, yes, yams are different but real yams are not often available in the U.S.). The LEM Products Commercial French Fry Cutter specifically lists sweet potatoes:

Makes French fries, sweet potato fries, zucchini sticks and other favorites

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The LEM cutter looks promising, I will give it a try. – Andre Aug 9 '12 at 13:59
Note that looks an awful lot like the Weston fry cutter from the video link in my original comment. While the Weston doesn't specifically call out sweet potatoes, it does seem to be the same mechanism. – JoeFish Aug 9 '12 at 14:30
I realize this is an older post but I wanted to voice my comment on the sweet potato cutter you listed."Progressive International Jumbo Potato Cutter" DO NOT BUY THIS PIECE OF EQUIPMENT!! It specifically states not for yams or sweet potatos. I find it difficult to believe that you actually sliced sweet potatoes using this tool. Don't waste your money people on this if you want to slice sweet potatoes. – user21111 Nov 5 '13 at 17:22

Most varieties of sweet potato will not successfully chip, or hold together during the cooking process when chipped into the traditional square rod shape. Sweet potato turns mushy very quickly during the cooking process, and may also go very chewy if even slightly over cooked

Commercial sweet potato chips have been carefully selected and pre-cooked to hold shape and maintain strength for the a quick hot oil fry finish. Frozen sweet potato chips are generally intended for cooking in the oven

I would suggest you experiment with different sized discs cut from the width of the sweet potato. Using an adjustable depth Mandoline will help with this

Sweet potato discs Sweet potato deep fried

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Ziggy's Potato Cutters will handle sweet potatoes...they are harder on the blade but it does a fine job.

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Although we don't normally want self-promotion, I think in this case given that the top voted accepted answer basically just lists two brands and links to them, I can't really justify deleting this as spam. It's also indirectly helpful, in that it suggests that ribbon fries rather than traditional fries are easier for sweet potatoes. – Jefromi Jul 9 '14 at 14:10

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