This item is made of feldspar porcelain, one of the oldest and most proven materials for degusting and presenting food and hot drinks. Because of the high firing temperature and the resulting hardness and density, it is also called hard porcelain. Feldspar porcelain is always oven-safe, suitable for the microwave and dishwasher-safe.

This item is classified into the quality level High Quality as the best sorting with a ratio of approx. 95/5 a-b-grade. The glaze is even and shiny. The item is free from visual flaws. In very few cases minor pinholes or light refractions can still be seen when reviewed carefully. As porcelain is a natural product, the item is “top” but not “perfect”. This quality level is comparable e.g. with Bauscher, Schönwald, Rosenthal, Villeroy & Boch, RAK and many other well-known premium brands.