Picking lentils everyone will, first pull off the tendons, and then break into small pieces, and then rinse with water, in fact, this step is wrong. Lentils must be washed first after picking, if the cleaning of lentils before picking, it is easy to make the surface layer of pesticides and bacteria contaminated to the internal, thus very easy to cause diarrhea. And the process of picking vegetables first, there will be juice out, and then wash with water, lentils will lose some of the nutrients. Picked lentils, to wait until the pot before cutting into small pieces, in order to reduce the time the incision contact with the air. This is because if the cuts are in contact with air for a long time, it will make the vitamin C oxidized.

Lentils (scientific name: Lablab purpureus (Linn.) Sweet) are perennial twining vines of the family Leguminosae, genus Lentil. The whole plant is several hairless, the stem is up to 6 meters long, light purple. Leaves pinnately compound; stipules basifixed, leaf blade lanceolate; stipules linear, leaflets broadly triangular-ovate, width equal to length, lateral leaflets unequal in size on both sides, oblique, racemes erect, inflorescence axis robust, bracteoles suborbicular, flowers clustered on each node; calyx campanulate, corolla white or purple, flag petals orbicular, pteropetalous broadly obovate with truncated auricles, keel petals incurved at right angles and tapered at the base into petioles; ovary linear, glabrous, style longer than ovary, pod oblong-falcate, flattened, seeds flattened, long elliptic, white in white-flowered varieties, purple-black in purple-flowered varieties, umbilicus linear, flowering from April to December.