After washing lentils, boil them in boiling water for 10 ~ 15 minutes. When the color of lentils changes from bright green to yellowish, it means that they are cooked. Immature beans are easy to cause poisoning, so beans must be cooked before eating.

If it is cooked, stir-fry it for 10 minute and stew it for about 5 minutes, so as to ensure it is cooked. When it doesn't smell like beans, it means it's cooked.

Lentils are perennial twining vines of Leguminosae and Lentils. The whole plant is almost hairless, and the stem length can reach 6 meters, which is lavender. Native to India, it is distributed in tropical and subtropical regions, such as Africa, Indian subcontinent and Indonesia. It is cultivated in both north and south of China. Born on the roadside, in front of the house, behind the ditch, etc.