2. Remove the beard of the old corn, wrap it in clean gauze, put it in the pot with the old corn, and then add a proper amount of water. The water must not exceed the old corn.
3. After adding water, boil it with strong fire. Then add a small amount of salt to the pot to cook, so that the cooked old corn will be slightly sweet for life and taste excellent. Friends who like to drink milk can also add a small amount of milk or milk powder, so that the cooked old corn will be more fragrant and tender, with a strong milk flavor.
4. When cooking old corn, you can add a small amount of baking soda to the water. Baking soda is an alkaline component, which will stimulate the activity of nicotinic acid in old corn, making this substance easier to be collected by human body. Take out the cooked old corn and cut it into small pieces. You can also stew it with ribs, or remove the corn kernels and make pine nut corn with pine nuts, carrots and other ingredients.