Bisque firing is the initial stage of firing pottery in a kiln. During this process, clay objects are heated to a temperature between 1,600°F and 1,900°F (about 870°C to 1,040°C). This firing removes moisture and hardens the clay, making it more durable and easier to handle. The result is a porous, unglazed piece that can absorb glazes in the next firing stage. After bisque firing, the pottery is ready for glazing. The porous surface allows the glaze to adhere better, enhancing the final appearance. Once glazed, the pieces undergo a second firing, known as glaze firing, which vitrifies the clay and glaze, creating a finished, functional product.