Before playing with Dongzhu, the surface of the Dongzhu should be cleaned up with cotton cloth dipped in water, and then the Dongzhu should be played with soft cotton cloth or cotton gloves. The Dongzhu should be rubbed slowly when playing with it. When the temperature of the Dongzhu is too high, it needs to be cooled down before continuing to play with it.
Before playing with the East Pearl, the East Pearl must be cleaned up first. Do not soak the East Pearl directly, but wipe the floating ash on the surface of the East Pearl with cotton cloth, and then wipe the water stains on the surface of the East Pearl as soon as possible, and then use soft cotton cloth or cotton gloves to start playing with it.
When playing with the East Pearl, you should slowly make sure that every place in the East Pearl is in place. After playing with the East Pearl, the temperature of the East Pearl will get higher and higher. When the temperature of the East Pearl is too high and close to the body temperature, wipe the East Pearl with cold water, and then let it stand to reduce the temperature before continuing to play.
In the process of playing with the East Pearl, do not be too fast, otherwise it will cause the East Pearl to lose water. And when cooling the East Pearl, you can't directly put the East Pearl in the biting ice water or refrigerator. Excessive temperature difference will cause the East Pearl to burst, so playing with the East Pearl is a gradual process.