Which fast food fries are actually vegan?

"Vegan by ingredient" and "actually vegan" are different standards. Only eight major chains cook their fries in a dedicated fryer — meaning no cross-contact with chicken, fish, or dairy-containing fried items — and use no animal-derived cooking oils or flavorings: Five Guys (peanut oil), Chick-fil-A (refined peanut oil), In-N-Out (sunflower oil), Mission BBQ (soybean oil, dedicated-fryer claim source-noted), Hopdoddy (non-GMO rice bran oil), P. Terry's (canola oil, dedicated fryer confirmed by guest relations), Dick's Drive-In (sunflower oil; fryer architecturally dedicated via menu simplicity), and Elevation Burger (olive oil, dedicated fryer; unique on Frypedia for olive oil). These are the eight chains where vegans can eat fries without cross-contact concerns.