Yushu Wo Wo is frozen in the refrigerator and steamed in a pot. Why does it turn black? Can I still eat?

So from another perspective, if the refrigerator is not disinfected regularly, it will become a "hotbed" for some bacteria. [3]

Don't store any food in the refrigerator for too long. It is best to eat it as soon as you buy it, because long storage time will not only affect the delicious food, but also easily produce odor. There are also some fruits, such as bananas and apples, which are easy to deteriorate if they are kept for a long time. Once it deteriorates, it will emit a gas harmful to human body.