After the porridge is boiled, there is a layer of fine, sticky, cream-like substance floating on top, commonly known as porridge oil. Chinese medicine believes that millet and rice have the effect of tonifying the center, strengthening the spleen and stomach. If the two to porridge, they contain most of the nutrients will be cohesive in the porridge oil, has a strong nourishing effect. Mothers in labor and people suffering from chronic gastroenteritis often feel a lack of vital energy, and drinking congee oil can replenish vital energy, increase stamina, and promote early recovery. According to "Zilin single recipe", drinking congee oil is best on an empty stomach, add a small amount of salt and consume, but also play a "medicine" into the role of the kidneys, have the effect of tonifying the kidneys and benefiting the essence. To obtain high-quality porridge oil, need to pay attention to three points: porridge used in the pot must be brushed clean, can not have oil, otherwise it will affect the quality of porridge oil; porridge is best to use a small fire simmering, try not to add any condiments, so that you can get a very pure porridge oil; porridge oil boiled out of fresh rice on the gastric mucosa has a protective effect on the gastric mucosa, suitable for patients with chronic gastritis, gastric ulcer patients to take, if you use a long time of storage of the old rice boiled out of the Porridge oil, the nutritional value is greatly reduced.