1. Cleaning: When playing with walnuts, first clean the surface with a brush to avoid dirt and dust from affecting the beauty and playing effect of walnuts. When cleaning, do not use chemical cleaners to avoid damaging the surface of walnuts.

2. Avoid oiling: oiling walnuts will destroy their naturally secreted oil, which will lead to the color of walnuts turning black and affect the playing effect. Therefore, it is generally not necessary to oil walnuts.

3. Avoid bumping: Although walnuts are strong, they still need protection. When carrying and placing walnuts, it is necessary to prevent bumping and squeezing, so as not to affect their integrity and preservation.

4. Avoid high temperature: Walnuts should not be exposed to high temperature, otherwise they will crack and age. Therefore, walnuts should not be exposed to the sun, nor should they be in direct contact with high-temperature items.

5. Brush more: the grain of walnut is easy to hide evil and shelter evil, so it should be cleaned with a brush to keep it clean and beautiful.

The taboo of playing walnuts in the above dish can help you better maintain and play the walnuts in your dish.