1, in fact, not, durian open or not open, and can not be used as an absolute basis for judging whether the durian is mature.

2, to determine whether the durian is ripe method: shell color: you can look at the color of the durian shell, mature durian shell color is yellow.

3, durian thorns: you can pinch the durian thorns above the durian, if you can pinch, it means that the durian is ripe.

4, aroma: you can smell the durian flavor, ripe durian will emit a special flavor.