KFC’s Secret Recipe Vault
Like other famous food establishments, KFC guards its valued recipe. One way they keep it safe is by having half of the spice mix produced in the Griffith laboratories before being sent to McCormick company where the recipe is completed. Finally, it gets sent from there to KFC. Within their vault, they keep the secret recipe, which is signed by Harlan Sanders and a sample of the spices and herbs mixed together.

KFC’s Secret Recipe Vault
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