fries

Question

I saw a place that only sells mcdonalds fries. They don't sell anything else so there should be o problem with the kelim or mixing with some other product. The ingredients contain natural flavor from beef source - is this ayno rauy l'achila? may one purchase the fries from this place ( or from a mcdonalds that one is sure the fries are fried seperately in their own keilim (i don't know if this exists.)) fries ingredients from mcdonalds.com: Potatoes, partially hydrogenated soybean oil, natural flavor (beef source), dextrose, sodium acid pyrophosphate (to preserve natural color). Cooked in partially hydrogenated vegetable oils (may contain partially hydrogenated soybean oil and/or partially hydrogenated corn oil and/or partially hydrogenated canola oil and/or cottonseed oil and/or sunflower oil and/or corn oil). TBHQ and citric acid added to help preserve freshness. Dimethylpolysiloxane added as an anti-foaming agent.