Here Are 15 Of The Most Closely Guarded Secrets Only Two Living People Know

13. The recipe of KFC spices is known to only two people in the world

Just like with Coca-Cola, only two KFC executives know the secret recipe of the spices used in the famous fried chicken everyone around the world eat. The recipe is guarded in a facility that sounds like it is made to guard a treasure. The facility has 2 feet thick concrete walls, round the clock surveillance, armed guards and unique PIN codes for the two executives who can open it only when both of them are present there. To go even further to keep it a secret, not all the spices are mixed in one place. Half the spices are mixed in one location and then this mixture is taken to another location to be mixed fully so that no one knows all the spices that are present.