In the year 1703, Duke Johann Ernst granted Ernstthal the right to produce glass. In line with this tradition, the glass works was founded in 1923, in the heart of the Thuringian Forest. We melt up to 600 tons of glass daily. From this, we produce 1.2 million bottles for spirits, dressings and oils as well as exclusive designer bottles. Special requirements for coloured bottles can be fulfilled by using feeder colouring. Three of nine state-of-the-art IS machines are equipped with colour feeders.