At what temperature should you deep-fry fries?

Between 170°C and 180°C 

If you bought frozen fries from the store you can fry them crispy in a couple of minutes. Easy peasy. However, frozen fries from the supermarket are nowhere near as good as Real Belgian Fries. And it's super easy because we wrote an article about it, check it out here: https://www.aveno.be/2019/11/how-to-make-real-belgian-fries.html