Earthenware is the lowest firing clay, this means it matures in the kiln at a low temperature.
Earthenware is the lowest firing clay, this means it matures in the kiln at a low temperature. This has the advantage of requiring less energy, therefore cheaper electricity bills. Earthenware is more porous than other types of clay. This makes it unsuitable for use in dishwashers and microwaves. Water absorbed in the clay can cause cracks during heating. However, glazed earthenware is perfectly safe for food use but it will need to be hand washed.