The distinctive features of faience
Unlike porcelain tableware, earthenware is less snow-white and less durable and is characterized by thicker walls.
It does not store the heat of a cooked dish for as long as porcelain products.
In addition, earthenware is not able to withstand large temperature differences (which can withstand dishes made of solid porcelain). If during the care of porcelain, you can wash it in hot water, the coating on faience products may simply deteriorate due to this.
In the case when it is necessary to distinguish one material from another, you just need to lightly tap on the edge of the plate. Porcelain will produce a long sound characteristic of it, and earthenware – deaf and lower.
How is this explained? The main ingredient in the composition of faience, as mentioned above, is white clay, which is characterized by such qualities as low strength and thermal stability, large wall thickness and porous structure. Because of this, earthenware absorbs more moisture and absorbs odors than porcelain.
Small shocks that cause a dull sound are due to the fact that the earthenware is produced by firing at relatively low temperatures. The fact that porcelain is mechanically much more durable is explained by the same.