IVV (Industria Vetraria Valdarnese) was founded in 1952 by glassmakers in San Giovanni Valdarno, in the heart of Tuscany. Over the years, IVV has become one of Europe's leading glass and hand-made glass manufacturers. Research into materials, design, traditional craft techniques, and precise process controls have resulted in unique works that are constantly evolving and innovating decorative and tableware. Its brilliance, transparency, and unique hues are what distinguish IVV glass from ordinary glass. These superior qualities are achieved to perfection at every stage, from the raw materials used, to the production techniques applied, to the dedication of our master glassmakers. It is handmade and dishwasher safe at low temperatures.