Is McDonald's potato peeling process mechanical, chemical, steam, or something else when they make their French fries?

Is McDonald's potato peeling process mechanical, chemical, steam, or something else when they make their French fries?
Our Answer
McDonald's South Africa (SA) potatoes are peeled using steam pressure. They are first washed with water in a barrel washer before being sealed inside the peeling machine and then compressed with steam. When the steam is released, the potato peels fall off.
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McDonald’s South Africa |