Porcelain The porcelain range is perfect for everyday magic moments. Porcelain combines the low porosity of glass with the ability of clay to retain its shape when fired at very high temperatures. All items are glazed to achieve a glossy look. Porcelain is strong, tough, and non-porous. It is likely to last a long time and you can wash it all in the dishwasher, heat it in the microwave or oven, and store leftovers in your freezer. Porcelain symbols: Icon Meaning This product is approved by DVFA and tested food safe. This product is dishwasher safe. This product is microwave safe. This product is oven safe. This product is freezer safe.