From Xinxiang Ceramic Mug Manufacturer, The classification of ceramics is divided into categories. At present, the main products circulating on the market are daily-use porcelain, bone ash porcelain, Linglong daily-use porcelain, underglaze (middle) color daily-use porcelain, daily-use fine pottery, ordinary ceramics and fine ceramic cooking utensils. Except for bone ashes, the other products are divided into different grades such as high-quality, first-class, and qualified products according to the number or magnitude of appearance defects.

According to the way of decorative surface. According to the characteristics of the flower surface, it can be divided into over-glaze, mid-glaze, under-glaze and colored glaze porcelain mugs, and some white porcelain without color. On-glaze ceramics are products made by sticking floral paper made of on-glaze ceramic pigments on the glaze or directly painted on the surface of the product with pigments, and then baked at 700-850 degrees. Because the baking temperature does not reach the melting temperature of the glaze layer, the flower surface cannot sink into the glaze, but can only stick to the surface of the glaze layer. If you touch it with your hands, the surface of the product will feel uneven, and you can observe the unevenness with the naked eye.
Appearance Quality. Consumers can first check the product name and grade indicated in the product packaging box or the file in the box; second, they can observe the actual quality of the product with the naked eye. When purchasing, they should try to choose products with no obvious defects on the surface and regular shapes. For plate and bowl products, you can stack several products of the same size and observe the distance between them. The uneven distance indicates that the shape of the device is irregular and the deformation is large. For a single product, you can lay it flat or snap it back on the glass plate to see if it fits the glass plate to determine the magnitude of its deformation. For stoneware coffee mugs, you can hold it on your hand and tap the edge of the mouth with your fingers. If there is a hoarse sound, it means that there are cracks.
Use functions: 1. When purchasing porcelain for microwave ovens, avoid products with metal decorations, such as products with gold edges, silver edges, or gold paper, metal wire, or metal wire inlaid patterns. 2. Products that are washed in the dishwasher should be products with thicker edges and arc-shaped reinforced edges, because such products are not easily damaged during the washing process.