Screwed: Move away from corks threatens wildlife
November 30, 2008 by Doug Haugen
Corks have been the bottle stopper of choice for ages, but are they the best option?
Sitting in the tasting room of White Heron Cellars one night, Cameron Fries told us a joke about a salesman trying to sell the latest innovation: corks. In his pitch, the salesman said, “Sure, this will spoil one out of ten bottles of wine, will sometimes crumble into the bottle, and requires a special tool to open, but all that is made up for by the satisfying popping sound it makes when you pull it out.”
Over the past few years, even winemakers of premium wines have been turning to alternative bottlestoppers like synthetic corks, screwcaps and glass stoppers. Developments in technology have resulted in closures that still allow wine to breathe a little, and age as wine should (though at a slower pace), while eliminating the risk of a wine becoming “corked.”
Sounds dreamy.
But, it turns out that the move to screwcaps isn’t without its consequences. According to an article in the Telegraph in the UK, the move away from corks is threatening to kill off important wildlife habitats in Europe.
Cork comes from the bark of matured cork oak trees. It takes a tree forty-five years to mature to an age where it can be harvested without killing the tree, and then the tree can be harvested every nine years. Cork stoppers make up seventy percent of the income for cork harvests, and as wineries stop buying corks, some farmers are tearing up their trees to try different cash crops. However, cork oak forests are often on inhospitable ground, and the terrain turns to desert.
This is bad news for the wildlife that inhabits the forests. Reportedly, in only 0.1 of a hectare of cork forest, there are more than 100 certified species. Two species in particulare are at risk of extinction, the Iberian lynx and European cranes.
Perhaps new technology will eliminate the chance of cork taint without eliminating corks.




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