11 Amazing Facts about the McDonald's McRib

According to an article from Chicago magazine, which cites a 1995 article by Mandigo, "restructured meat product" contains a mixture of tripe, heart, and scalded stomach, which is then mixed with salt and water to extract proteins from the muscle. The proteins bind all the pork trimmings together so that it can be re-molded into any specific shape — in this case, a fake slab of ribs.

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