Noodles are moldy. Broccoli and mushroom noodles belong to vegetable noodles. Suitable for babies over 6 months old. British broccoli and mushroom noodles have black spots because the noodles are moldy. Mildew is a common natural phenomenon, which often appears in food. Food contains a certain amount of starch and protein, and more or less contains some water. The growth and development of molds and eggs need the existence of water and warm temperature. Moulds and eggs with low water activity value can't absorb water, but when the water activity value increases after being wetted, moulds and eggs will absorb water in food, and then decompose and eat nutrients in food.