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Eric Arakawa holds one of his creations aloft in his workshop in Waialua.
Vol. 8, No. 4
August/September 2005

  >>   An Island At Sea
  >>   High Rollers
  >>   The Print Master

One Potato, Two Potato, Three  

by David Thompson
photo by Peter French

The Okinawan sweet potato is dull as a brown paper bag on the outside, but inside, itís a different story: The flesh is a stunning purple. Equally stunning is the sweet spudís sudden emergence as the Big Islandís newest cash crop. In the past year, Mainland exports more than doubled, to 100,000 pounds a week. Along the lower Hamakua Coastówhere the deep, volcanic soil and ample sun and rain offer perfect growing conditionsó farmers are now devoting acreage to it like mad.

The regally colored tuber is believed to have been introduced to Hawaii by contract laborers recruited to work on sugar plantations in the nineteenth century. Plantings surged last year after the U.S. Department of Agriculture allowed farmers to begin zapping their spuds at a Big Island irradiation facility rather than shipping them to a fumigation facility on Oahu, a costly detour. (The treatment step is required to keep Hawaii from accidentally exporting pests such as the West Indian sweetpotato weevil and the sweetpotato stem borer.)

With the popularity of sweet potatoes in general growingóthanks in part to two influential fans, Oprah Winfrey and TV chef Emeril (BAM!) LagasseóBig Island farmers think the Okinawan variety could get even more popular on the Mainland. No longer just contained to Asian markets, itís now cropping up in mainstream supermarkets. Itís also appearing in more and more restaurants, as chefs discover its delicately sweet, nutty flavor and the deep, rich color it brings to a plate. Certainly, the tasty purple tuberís got a lot going for it: Like all sweet potatoes, itís loaded with vitamins and minerals. Like the blueberry, it is chock-full of antioxidants. And like any potato, itís wonderfully versatile. Iris Shepard, who has twenty acres of Okinawan sweet potato planted at her farm in Onomea, likes to make purple potato salad, with fruit, nuts and yogurt. "Itís tasty," she says. "Really, really tasty."