According to the query of 39 Health Network, the cooking time of water chestnut generally needs to be determined according to the size and tenderness of water chestnut. If it is a tender water chestnut, it usually takes about 10- 15 minutes, and if it is an old water chestnut, it takes about 20-30 minutes. In the process of boiling water chestnut, you can gently prick it with chopsticks. If the water chestnut is easily pierced, it means it is ripe.
It should be noted that in the process of boiling water chestnut, do not open the lid frequently, so as not to affect the taste and cooking degree of water chestnut.