Ceramic fiber textiles contain about 15% of organic fibers. When used for the first time, the organic fibers in the products will gradually carbonize and become black with the rise of temperature, and there will be smoke. There may be flames in some places, which is normal and does not affect the use. As the temperature continues to rise, the product will gradually turn white again, the organic fiber has been completely carbonized, and the product is completely made of high-temperature resistant inorganic materials such as ceramic fiber.