Just Cork

Cork Stoppers are the simple, sustainable way to achieve a reliable, compression-fit seal on bottles, jars and laboratory glassware, combining natural material science with everyday practicality. Before we get technical, here’s the quick win: if you need a dependable source of quality Cork Stoppers , you’re in safe hands. Why cork works Common uses Material options & grades Sizing & fit (with mm examples) Performance factors that affect seal quality Care, hygiene & mould prevention How to cut and trim a cork stopper Troubleshooting leaks & poor fit Sustainability & provenance Quick FAQs Why cork works Cork is a natural, closed-cell material from the bark of Quercus suber (cork oak). Each microscopic cell is lined with suberin , a waxy substance that resists water and lends cork its famed elasticity and rebound. The result is a light, porous yet resilient structure that compresses on insertion and expands to create a tight seal —precisely what you...