1. First pour the bought mushrooms into the pot and add appropriate amount of water, then add appropriate amount of baking soda into the pot. Here, I want to remind you that you must use edible baking soda and pay attention to it.

2. Then add an appropriate amount of edible salt to the pot, soak the mushrooms for about an hour, cut off the mushroom feet after soaking, and then add an appropriate amount of corn starch to the container.

3. Then stir the corn starch evenly by hand, try to make the corn starch stick to any corner of the mushroom, and then rinse the mushroom repeatedly with water, as long as the water is clear.