Mangosteen is a tropical fruit, and its epidermis is thick. Normally, fresh mangosteen is rich in water, both in epidermis and pulp, and the epidermis is elastic, which can rebound back after being pressed. However, mangosteen will harden after being kept for a long time. The main reason is that the epidermis contains more loose pore structures, and after long-term storage, water loss causes the epidermis to harden.

The mangosteen can continue to be eaten after the epidermis becomes hard, but it is difficult to open the mangosteen with hard epidermis; However, if the mangosteen skin is not only hard, but also the pulp is rotten and deteriorated, then the mangosteen can no longer be eaten.

2 mangosteen can't be opened for a long time. How to open it with tools?

The skin of mangosteen will harden after being put for a long time, but this does not mean that mangosteen can no longer be eaten. After that, the taste of mangosteen will not be as good as that of fresh mangosteen, and it will be more difficult to open it. If the hand strength is small, it may be difficult to open it by hand.

At this time, tools are needed to open the mangosteen. First, clean the hardened mangosteen, soak it in water for about 10 minutes, then dry it, cut it open with a knife after fixing it, and then squeeze it hard to open it.

3 How to judge whether the mangosteen is bad 1? Look at the color of the fruit peduncle. There will be a fruit peduncle above the mangosteen, and the more emerald the fruit peduncle is, the fresher the mangosteen will be. If the mangosteen peduncle is black, it means that it has been stored for a long time and even has begun to rot.

2. Look at the mangosteen with a good shell color. The shell color is purple and bright. If the shell color of mangosteen is dark purple and the gloss is poor, it may have deteriorated.

3. Look at the mangosteen shell with good shell hardness, which is thick and flexible, and can rebound back after being pressed with your fingers. However, if the mangosteen shell you bought is hard and your fingers can't pinch it, it means that it has been stored for too long.

4. Look at the fresh pulp. The mangosteen pulp is white, and the petals are closely related. If the mangosteen pulp begins to appear transparent, yellow and black, it means that it has begun to deteriorate.

Is it right that mangosteen tastes sour? No.

Normally, the mangosteen pulp is very sweet and does not taste sour. If the mangosteen pulp tastes sour, it means that it has begun to deteriorate. The reason why the mangosteen pulp becomes sour is that the mangosteen shell contains pores, and the water will be lost after a long time. At this time, the fruit shell will not protect the pulp, and air will enter from the pores. Breathing will consume sugar and produce sour substances, so the deteriorated mangosteen will become sour.