SÜBR F7 is the world’s most sustainable, gluefree, and TCA-taint-free micro-natural closure with natural design. The real innovation of SÜBR F7 lies in its patented biodegradable plant-based binder material, also commonly used in biodegradable food packaging. This binder is fully glue-free, making SÜBR F7 work safe to produce, it is recyclable, long-term biodegradable and it is specially designed to fit a circular economy philosophy. The combination of long-term cellar aging performance, fit for circular economy, and natural design makes SÜBR F7 a truly innovative micronatural closure for the wine industry.