here in california on land from redding to bakersfield, more than 200,000 acres are devoted to walnut production. dan martinez and his family have been rooted in the walnut industry since the fifties. they call the fertile soil of winters home base and say it is the absolute perfect place to grow one of nature's perfect foods. >> in particular in winters, we have, i think, an ideal climate for walnuts in addition to the climate, we have great deep soil along putah creek on the south side, deep, very alluvial soil, and access to a lot of and good, clean water. >> today, dan and his family grow 700 acres of grapes and rootstock in addition to the 170 acres of walnuts they have. but to stay competitive in the nut world, they've been looking for other venues to sell their walnuts. one of them came just down the road in woodland at the la tourangelle nut oil company. >> it's been great, a very dynamic business. we're always looking for