This champagne glass has been beautifully decorated with industrial gold painting. The glass is made by blowing and heat treatment. The painting on the glass is made with 10 carat industrial gold and special colours, after which it is tempered twice at 560°C. This fuses the painting with the glass. The glasses can be used and washed daily; however, we recommend hand washing with normal detergents and always rinsing them well. Do not use any heavy-duty cleaning solutions on the product as it may damage the painting and/or glass.