Eco-Effective Decisions: Who Wants to Un-Screw the Cork?
Ever since the French monk Dom Perignon searched for the perfect closure for his new sparking wine in the early 16oos, the cork stopper has been a cultural staple that is synonymous with the celebration of opening a new bottle of wine. Since the new millennium, worldwide wine production has become a larger and more popular industry. New wine producing regions are moving towards alternative wine closures, therefore putting the entire cork industry at great risk. Can anyone remember why we started putting plastic, rubber, and foam “corks” into our wine bottles? I was always told one of two things: a more controlled (more synthetic) material allows for more stringent product, and that cork was scarce so we don’t want to destroy the cork forests. The former is a problem that has since been solved, and the later is hardly the case. Cork is a naturally sustainable material and therefore commercialization of it is easy on nature- not a single tree has to be cut down.
Cork, as we know it, comes from the outer cell layer of the bark on cork oak trees (Quercus Suber). The stopper layer is easily separated from the mother cells when the connecting layer (phelogen) becomes brittle. Once the bark (cork) is stripped off the tree in the late string and early summer, it renews itself naturally. An added bonus: each time cork is harvested, the tree stores more CO2 as a result of regenerating. It is reported that the tree stores 3-5 times more CO2 when harvested regularly.
The cork industry has found its home for centuries in the Mediterranean. Portugal has the world’s largest cork industry, yet it is an important forest crop to Italy, Spain, Algeria, France, Tunisia, and Morocco. The forests cover nearly 2.7 million hectares in total, and produce over 15 billion cork stoppers.
What’s the news? Due to “cork” alternatives, the cork industry is losing its intrigue as a cultural staple for wine bottle closures. The World Wide Fund reports that cork sales in the wine industry fell 20% between 2000 and 2005. Portugal has reported a severe drop in cork stoppers exported to Australia and the U.S. “New consumer trends and winemaking techniques, as well as more competitive markets, have led producers to look for more technical or cheaper closures – plastic ‘corks’ and metal screw tops”. Despite the optimal performance of cork as a stopper material- high elasticity, natural insulatinsulating qualities, light weight, and durability - the plastic and metal screw tops are becoming more accepted as standard wine closures to us consumers.
This increase in market share is leading to a decline in the global cork market, and thus degradation of cork oak forests that have (and could for years to come) provided one of the most diverse ecosystems and community-based industries of the region. They report that this could potentially lead to a loss of 60,000 jobs, and thus could severely harm the biodiversity of the forests.
Although the market demand for cork is slowly shifting to flooring and wall coverings, wine stoppers still account for about 70% of the industry profits. Whatever the reason might be, there is a reason that we still call a cork a cork, synthetic or woody. "We’re fighting back,” says Antonio Amorim, third generation owner of one of Portugals largest wine stopper producers. "We may have lost market share in some places but we are gaining in others.” "The shares, which shot up 79 percent in the past two years, are set to rise more as he wins back customers by virtually eliminating cork taint," said analyst Sonia Baldeira.
To help: do your best to find wine bottles that sustain the true cork community’s integrity and unscrew the cork.
To see more intensive case studies and future scenarios, view this pdf file.
For more information:
Images source: Amorim Corkfacts
