Prior to stardate 1312, Gary Mitchell visited this planet more than once. Each time he visited the planet, he always favored the apples. (TOS: "Where No Man Has Gone Before"; TNG: "The Big Goodbye", display graphic)
According to the Star Trek: Star Charts (pg. 44, "United Federation of Planets I"), Kaferia was located in or near Federation space, in the Alpha Quadrant. Kaferia was the third planet in the Tau Ceti system. In the mid-22nd century, Kaferia was a destination on the Vulcan trade routes. In 2378, Kaferia was a Federation member.