The secret behind McDonald’s (MCD) french fries has been revealed.

McDonald’s revealed how its french fries are made in a new video posted to YouTube. The video is hosted by former MythBuster member Grant Imahara and breaks down the process of how the french fries are made by reverse engineering them.

The process that goes into making McDonald’s french fries starts with with non-Genetically modified organism (GMO) potatoes harvest from fields. They’re brought to a factory where they are cut by being sent down a tube with a series of blades at the end at high speeds. Then the fries are seasoned, partially fried and frozen. After this, they are sent of to restaurants where they are prepared for customers.

Check out the video below to see how McDonald’s french fries are made for yourself.

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