Can green bean soup turn red and be consumed

Green bean soup can generally be consumed when it turns red. The color change is usually related to oxidation reactions or water quality, and does not affect the safety of consumption. If there are abnormal conditions such as turbidity and odor in the soup, it is not recommended to continue drinking. During the boiling process of mung bean soup, the polyphenols in the mung bean skin will oxidize when exposed to air or alkaline water, causing the soup color to change from green to red. This discoloration is a normal phenomenon and does not affect the nutritional value and digestion absorption of the soup. The red mung bean soup still contains rich B vitamins, potassium, magnesium and other minerals, which have the effects of clearing heat, detoxifying, relieving heat and diuresis. When consumed in summer, it can be paired with a small amount of rock sugar or lily, which can improve the taste and enhance the nourishing and moisturizing effects.

Storing for too long or boiling in an iron pot may cause the soup to become abnormally dark in color, accompanied by a viscous texture or a rancid odor. This type of spoiled mung bean soup may breed bacteria or produce harmful substances, which can easily cause abdominal pain and diarrhea for those with weak gastrointestinal function. It is recommended to use a clay pot or stainless steel pot when boiling, drink it promptly after boiling, and store it at room temperature for no more than 4 hours. People with sensitive digestive systems can add a small amount of tangerine peel or ginger to regulate coldness.

It is recommended to boil and drink mung bean soup for daily consumption, avoiding overnight storage. People with weak and cold constitution can reduce their consumption appropriately, or balance their diet with isothermal ingredients such as red dates and longan. Soak mung beans in the refrigerator for 2 hours before boiling to shorten cooking time and retain more nutrients. If you experience allergic reactions such as nausea and itching after drinking, you should immediately stop consuming and seek medical attention.