UVASYS is known worldwide as the pioneer laminated plastic sulphur dioxide generating sheet. For over 20 years our flagship product has been protecting grapes from postharvest fungal decay, particularly the devastation caused by Botrytis cinerea fungus (grey mould) that are transported and stored. UVASYS is developed by Tessara, a company that specialises in the design and production of sulphur dioxide preservative sheets for various fresh produce industries. In addition to grapes, we now cater for lychees, berries and flowers with new products currently in development.
It all started more than 30 years ago with a creative chemical engineer, Dennis Clemes, who was always on the lookout to innovate and invent new products. Dennis asked himself the question, “Can I create a product that extends the storage life of grapes for the export and local market?”
He created the concept and the formulation required for a laminated plastic sulphur dioxide generating sheet. Together with a colleague, and following years of trials and refinement, the reliable Uvasys sheet was born. Since then, the international table grape industry has depended on Uvasys which remains the world’s leading sulphur dioxide generating sheet. Tessara now extends fresh scientific methods into other fresh produce industries.