The reason why green bean soup is cooked into red:
1) green bean soup is often cooked into a dark red, such as the first cold water will be washed into the container of green beans, and then into the hot water; the process of cooking, if you need to add water, and still heating the water, so that the soup out of the soup is green
2) you cook if you cook the bean beans blossomed after a while must have become a red green bean soup to reduce the summer heat, and the green bean soup can also be eaten
3) the green bean soup is a good way to reduce the heat, but also a good way to reduce the heat, and the water can also be used to reduce the heat. Thirst quenching beans can also be eaten
Big fire to cook the beans do not cook the beans bloom in the case of natural soup is yellowish-green This green bean soup heat detoxification, but the beans can not be eaten
3) inside the edible alkali if you put it will be reflected, generally will appear red. The purpose of the alkali is to make the beans easy to rot, but will lose the nutrients of the beans; in addition, if the pot itself has a small amount of alkali content will also have this reflection (the alkali content in the pot is usually tap water with).
4) aged green beans cooked out is red, the year's new green beans cooked out is red