There were 53,000,000 pounds of macadamia nuts delivered wet in-shell to processors. The net production less the total spoilage through cracking was 48,000,000 pounds. Other suppliers included Costa Rica, Kenya, Zimbabwe and Brazil. Hawaii is the most developed market for macadamia nuts. The snack nut market is another major outlet for macadamia nuts.
Japanese visitors purchase a large quantity of macadamia products in Hawaii to take home.
The Hawaii Macadamia nut Association publishes an annual proceedings of research and issues, and a quarterly newsletter, MacFacts. Common Problems of Macadamia Nut in Hawaii Research Extension Series 112. In Gardens of Hawaii. Bishop Museum Press, 1965. Yokoyama, Kevin M., Kulavit Wanitprapha, Stuart T. Nakamoto and H.C. Bittenbender.