Inside Nestle's Kit Kat Plant

As Kit Kat celebrates its 75th anniversary, CNN's Ayesha Durgahee visits the Nestle plant in York, England, to learn the candy's secret to longevity and success.

As Kit Kat celebrates its 75th anniversary, CNN's Ayesha Durgahee visits the Nestle plant in York, England, to learn the candy's secret to longevity and success.

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