1, pinch the hard shell. If the skin is soft and elastic and the spikes on durian can be pinched inward, then durian is usually mature. If the durian skin is thick, it can't be pressed, and the thorns are hard and not easy to bend, such durian usually indicates that the maturity is not enough.

2. Look at the color of the shell. If the shell is golden yellow, it means that the shell is mature. If the shell is green, it means it is not mature enough. If the color is too dark, it means it is ripe and the storage time will be shorter.

3, smell, mature durian smells very fragrant, it may be smelled after more than ten meters, and immature durian will smell even lighter. However, if durian smells like wine, it means it is too ripe. This kind of durian is not delicious, so it is not recommended to choose it.

4, find cracks, mature durian will naturally crack. If there are obvious cracks on the shell of durian, it means that durian is completely mature, so it is recommended to choose durian for splitting. If durian has a big crack, it may mean that it is too mature and the pulp inside may have gone bad.