Dried shiitake mushrooms can continue to be consumed after 10 days if they have not spoiled; fresh shiitake mushrooms are not recommended for consumption after 10 days. Shiitake mushrooms are rich in nutrients needed by the body and can replenish energy for the body. Take fresh shiitake mushrooms as an example, every 100 grams of fresh shiitake mushrooms contain 26 kcal of energy, 2.2 grams of protein, 5.2 grams of carbohydrates, 3.3 grams of crude fiber, 11 milligrams of magnesium, 53 milligrams of phosphorus, 20 milligrams of potassium, 2 milligrams of calcium, and other various nutrients. However, attention should be paid to the intake when consuming to avoid overdose. Dried shiitake mushrooms stored properly, 10 days without deterioration, can be consumed; fresh shiitake mushrooms put 10 days, generally prone to corruption and deterioration, it is not recommended to consume, so as not to cause discomfort, indigestion, diarrhea and other symptoms. It is recommended that fresh shiitake mushrooms be kept refrigerated and consumed as soon as possible.