What's the difference between bone China cup and ceramic cup?

The difference between bone China cups and ceramic cups lies in their raw materials, permeability and thermal insulation.

1. Different raw materials: Bone China is made by adding about 3% of the bone powder of herbivores (the best is bovine bone powder) to the ceramic raw materials, and then firing at high temperature, low temperature glaze and decal paper for three times. Ceramics is a world-famous craft in China. Most of the raw materials of these porcelains are kaolin, porcelain stone and a small amount of lime.

2. Different permeability: the function of bone powder is to increase the transparency of porcelain. Generally, bone China contains 3%-45% animal bone powder, so the raw material of bone China makes it have good permeability. Generally, ceramics do not have good permeability, and relatively thin ceramics such as Linglong porcelain can transmit light.

3. Different heat preservation: Bone China has better heat preservation than ordinary China, and can make better tea or coffee.

Extended information:

The formation of bone China mainly depends on silica, alumina and calcium oxide, and the higher the content of calcium oxide, the better the color. In nature, there are not many sources of calcium oxide, so animal bone meal is chosen as the source of calcium oxide.

The color of bone China is natural milky white unique to natural bone powder. Generally speaking, porcelain containing 25% bone powder in raw materials can be called bone porcelain, and internationally recognized bone powder content is higher than 4%. The best bone porcelain generally contains 51% high-quality bovine bone powder. Among them, the composition of bone powder is more than 4%, and the color of the appliance is milky white, which belongs to high-grade bone China.

Reference:

Baidu Encyclopedia-Bone China Cup

Baidu Encyclopedia-Ceramic Cup.