Definition
Cork is the outer bark of the cork oak tree, primarily harvested for use in bottle stoppers and other applications. It's lightweight, impermeable to liquids, and elastic, making it ideal for sealing bottles. Think of it as nature's perfect bottle cap. Besides wine stoppers, cork is used in flooring, insulation, and bulletin boards. It's a sustainable material because the tree isn't cut down during harvesting; only the bark is removed. Cork is a versatile resource, blending practicality and sustainability.