When you choose a ceramic flower pot, you can listen to it. The main thing is to see if the ceramic flower pot has cracks or cracks. The ceramic pots with cracks or cracks may not be visible to the naked eye, but you can listen to the ceramic pots by tapping. The sound that is emitted can be discerned. There are cracked ceramic pots, even if they are extremely small cracks, the tone and tone are different from the perfect flower pot. When the hammer is hit, the ceramic pot should be lifted off the ground. Strike on the edge or bottom of the inner and outer walls. The sound of a perfect ceramic flower pot will have a crisp tone, crisp and pure, and there will be reverberation, the sound of the crack is impure or no sound, and the sound is dull.