Portugal Wine A case full with grapes to be used for the production of white wine waits to be carried away at the Quinta de Covela vineyard near Baiao, northern Portugal, Tuesday, Sept. 10 2013. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine A worker picks grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine A worker picks grapes to be used for the production of white wine at the Quinta de Covela vineyard near Baiao, northern Portugal, Tuesday, Sept. 10 2013. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine Workers climb stone steps carrying cases with grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine With the Douro river in the background, workers carry a case of grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine In this photo taken Sept. 11, 2013, rows of vines cover the slopes of the hills along the Douro river near Pinhao, northern Portugal. In the foreground is the Quinta da Boavista vineyard, an estate historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated wine region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine Workers picking grapes take a break and walk to a truck bringing them a meal during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine In this photo taken Sept. 12 2013, workers connect a pump to bring grape juice to the cellar for the production of white wine at the Quinta de Covela vineyard near Baiao, in northern Portugal's Minho wine region. The harvesting of wine grapes in northern Portugal's wine regions of Minho and Douro started this week. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine In this photo taken Sept. 11 2013, a worker carries a case full of grapes during the harvest near Pinhao in northern Portugal's Douro wine region. The harvesting of wine grapes in northern Portugal's wine regions of Minho and Douro started this week. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine In this photo taken Sept. 11 2013, cases full of grapes wait to be taken to a winery during the harvest near Pinhao, in northern Portugal's Douro wine region. The harvesting of wine grapes in northern Portugal's wine regions of Minho and Douro started this week. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine In this photo taken Sept. 10 2013, a worker reaches through a vine to pick a bunch of grapes at the Quinta de Covela vineyard near Baiao, in northern Portugal's Minho wine region. The harvesting of wine grapes in northern Portugal's wine regions of Minho and Douro started this week. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine A worker picks grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine A worker carries a case with grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine Workers carry a case with grapes to be used for the production of white wine at the Quinta de Covela vineyard near Baiao, northern Portugal, Tuesday, Sept. 10 2013. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine Workers climb stone steps carrying cases with grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
AP Photo/Armando Franca
Portugal Wine With the Douro river in the background, workers carry a case of grapes to be used for the production of red wine during harvest at the Quinta da Boavista vineyard near Pinhao, northern Portugal, Wednesday, Sept. 11 2013. The estate is historically associated with British winemaker Baron Joseph James Forrester who first mapped the Douro wine region, the oldest demarcated region in the world dating from 1756. Overall, Portuguese wine exports posted a third year of growth in 2012, with a 7.1 percent rise. (AP Photo/Armando Franca)
