I love sweet potatoes, I have them at least 3 times a week, I did chips last night.
I cook my chips on a net, they are not crispy like restaurants but there not soggy, I use crisp'n dry oil, pepper, mix herbs, cut them all the same size, I cook on 220 & don't time them, just check often.
I do prefer roast sweet potatoes, I cut them up into cubes, coat in same oil/herbs & garlic & roast in a normal tin until really crispy.
Top pic are the ones I cooked last night.
left hand mat was on top shelf & I took it out 5mins before the right net which was on middle shelf.
I should of left the right hand net in even longer than I did, but I was rushing to get done.
You can see left ones are more done.
Other 2 pics are from time before when Iv made crispy roast sweet potatoes.
I guess chips would be really crispy if you coated chips & then cooked on net.
A chef told me he used like a flour batter to coat his but i love plain food & can't add cornflour/flour/etc
Alot soak them first for hour in cold water before cooking.
I definitely think my net helps as I don't soak or coat & there not soggy x