McDonald's french fries start with whole potatoes. Here are the ingredients
: Potatoes, vegetable oil (canola oil, soybean oil, hydrogenated soybean oil, natural beef flavor [wheat and milk derivatives], citric acid [preservative]), dextrose, sodium acid pyrophosphate (maintains color), salt. They are prepared in vegetable oil (canola oil, soybean oil, hydrogenated soybean oil with TBHQ and citric acid added to preserve freshness), dimethylpolysiloxane added as an antifoaming agent.
"Once the potatoes are cut, we push the strips to a blancher to remove the natural sugars from the strips," Mario Dupuis, the production manager for McCain, a fries supplier for McDonald's Canada, says in a video
. "This will prevent some variation in our color once we re-cook the product. Following the blanching process we add a a dextrose solution to have that nice even coat that we see in the restaurants. We also add an ingredient to our strips to make sure that we prevent the graying of our product throughout the process." Moisture is removed from the strips before they are fried, frozen and packaged for shipping.