Heirloom beans, from Napa Valley to your mailbox

Rancho Gordo, in California's Napa Valley, doesn't sell you garden-variety beans. Their heirloom beans, many from small Mexican villages where the seeds are revered like old family recipes, are a hit with upscale restaurants and a mail-order clientele. Correspondent Jonathan Vigliotti asks owner Steve Sando to spill the beans about his success.

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