In a sprawling plant in the heart of California's farmland, millions of shells rush down a metallic chute and onto a conveyor belt where they are inspected, roasted, packaged and shipped off to groceries around the world.
Pistachios are growing fast in California, where farmers have been devoting more land to a crop seen as hardier and more drought-tolerant in a state prone to dramatic swings in precipitation. The crop generated nearly $3 billion last year in California and in the past decade the United States has surpassed Iran to become the world’s top exporter of the nut.
