The cork tree is the most abundant tree found in Portugal, which is responsible for producing roughly half of the world’s cork each year. Cork trees can live over 200 years, only harvested once they reach maturity and extracted up to 20 - 30 times throughout their lifetime. Cork is incredibly sustainable. When the cork is harvested the trees are not cut down, instead their bark is carefully stripped away by hand in a skilled trade that's passed down over generations. It takes nine years for the bark to grow back thick enough to be harvested again. After harvest, as the trees begin to grow back their bark, they consume up to five times more carbon from the atmosphere.