You can check whether the mangosteen is damaged by observing the mangosteen shell, the mangosteen pulp, and the mangosteen pedicle.

1. Observe the shell of mangosteen: The shell of fresh mangosteen is generally purple-red and bright in color, while the color of poor-quality mangosteen is black, the luster is not good, and the color will be very dull.

2. Look at the pulp of mangosteen: The pulp of bad mangosteen will turn yellow, and you will smell a sour smell if you smell it carefully.

3. Observe the mangosteen fruit pedicle: The greener the mangosteen fruit pedicle is, the fresher the mangosteen fruit pedicle is. The problem of blackening of the mangosteen fruit pedicle indicates that it has been stored for a long time and has begun to rot and deteriorate.