The recipe comes out on the video from McDonalds, the latest in a series called “Our food . Your questions” (Maybe to clear mass rumors about what McDonalds serve as food) in which Mythbusters co-host Grant Imahara tries to debunk rumors about their food.
In this video you will see Imahara, “reverse engineers” the process of french fry production, to trace the food right back to the source: a potato that comes straight from the ground. Yes ground not from some Chinese factory.
So they do use real potatoes and a mix including Russet Burbanks and Umatilla Russets to be precise. But then, as revealed in a companion video, they add a few extra ingredients.
Dextrose, a natural sugar, to keep the color consistent and sodium acid pyrophosphate, to keep the fries from graying, for starters. Natural beef flavor, hydrogenated soybean oil, dimethylpolysiloxane and TBHQ also join the party.
Together they add up to 337 calories and 17 grams of fat for a medium serving.