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McDonalds uses a potato cannon to make fries - they can mass produce them.

https://www.youtube.com/watch?v=IfZLWEAiixo

They are also dipped in dextrose for colour and Sodium Acid Pyrophosphate to reduce the graying from freezing them.

https://www.cnet.com/news/former-mythbuster-goes-on-mcdonald...




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