1. Look. Look at the color and flatness. Generally speaking, the clearer the color of the tiles, the better. Check with the naked eye whether there are pinholes. Pinholes can easily accumulate stolen goods.

2. Listen. The density can be determined by listening to the sound by tapping. The crisp sound indicates that the porcelain ceramic tile has high density and hardness and is of good quality.

3. Test. On-site measurement. Use a ruler or tape measure to measure on all four sides and diagonally of the tile to check the size.

4. Scrape. Look at the quality from the traces. To check the surface quality of ceramic tiles, you can use a hard object to scrape the glaze of the ceramic tiles to determine the surface hardness of the ceramic tiles.

5. Try. Look at the water absorption rate of ceramic tiles. Generally speaking, the water absorption rate of ceramic tiles is low, which means that the higher the inherent stability of ceramic tiles, the more suitable they are for spaces with high humidity or moisture content (such as bathrooms and kitchens), and they will not cause problems such as black spots. The common method to test the water absorption of ceramic tiles is to pour water on the back of the ceramic tiles. Ceramic tiles with slow penetration or even no water penetration are of better quality, and vice versa.

Extended information:

Tile maintenance:

1. Use white vinegar and lemon peel. First scrub the dirt on the surface of the sanitary ware, then use a soft cloth dipped in a little white vinegar to wipe the surface of the sanitary ware or wipe it with lemon peel. The sanitary ware will be as bright as new.

2. The walls of bathrooms are mostly paved with ceramic tiles. To keep them clean and bright, you can use multi-functional decontamination cream to clean them. As for the gaps between ceramic tiles, you can first use a toothbrush dipped in a little decontamination paste to remove scale, and then use a brush to apply a layer of waterproofing agent to the gaps. This not only prevents seepage, but also prevents mold growth.