Boiled water chestnut can be eaten overnight if it doesn't deteriorate, taste or mildew. We can dry the boiled water chestnut in the sun so that it can be preserved for a longer time. To cook water chestnut, you need to clean the water chestnut first, and then put it, seasoning and spices into the pot to cook and stew for a while.
Boiled water chestnut can be eaten after overnight, as long as it does not deteriorate, taste change, mildew and so on. If we cook too many water chestnut at one time and can't finish it as soon as possible, we can put it in the sun to dry the skin, which can keep the water chestnut for two or three days.
When we cook the water chestnut, we should first clean the water chestnut. We only need to soak it in salt water for about half an hour, then brush it with a brush and rinse it with water several times.
Then we can heat the water chestnut and other seasonings and spices in the pot, boil the water in the pot with high fire, and then turn to medium fire for stewing. After about 15 minutes, turn off the fire and close the cover to stew the water chestnut for a while, so that the water chestnut will be cooked.