1. There are two methods, as follows:

(1) Boiling method: Boil the water, then put the lotus seeds into the pot and cook until soft.

(2) Acidification method. The shell of lotus seeds is a layer of fibrous tissue. You can soak it in vinegar to soften it at home.

2. Lotus seeds, the name of Chinese medicine. It is the dry and mature seeds of Nelumbo nucifera?Gaertn., a plant of the Nymphaeaceae family. Distributed in all provinces in northern and southern my country. It has the effects of nourishing the spleen, stopping diarrhea, stopping vaginal discharge, replenishing the kidneys and astringing essence, nourishing the heart and calming the nerves. It is often used for spleen deficiency, diarrhea, vaginal discharge, spermatorrhea, palpitations and insomnia.

3. Morphological characteristics: Lotus seeds are slightly oval or spherical, 1.2~1.8cm long and 0.8~1.4cm in diameter. The surface is light yellowish brown to reddish brown, with fine vertical lines and wide veins. One end has a nipple-like protrusion in the center, dark brown, with many cracks, and its periphery is slightly sunken. Hard quality. The seed coat is thin and difficult to peel off. There are two cotyledons, yellow-white, thick, with gaps in the middle, and green lotus seed hearts. Odorless, sweet and slightly astringent.

4. Perennial aquatic herb; the rhizome is transverse, thick, with enlarged internodes. There are many longitudinal ventilation pores inside, the nodes are constricted, black scale leaves grow above, and whisker-like adventitious roots grow below. The leaves are round, shield-shaped, 25-90 cm in diameter, the entire edge is slightly wavy, the upper surface is smooth, with white powder, the lower leaf veins shoot out from the center, with 1-2 forked branches; the petiole is thick, cylindrical, 1- 2 meters, hollow, with small thorns scattered outside.

5. The pedicels and petioles are equal or slightly longer, with scattered small thorns; the flowers are 10-20 cm in diameter, beautiful and fragrant; the petals are red, pink or white, oblong, oval to obovate. , 5-10 cm long, 3-5 cm wide, gradually getting smaller from the outside to the inside, sometimes turning into stamens, with a rounded or slightly pointed apex; the anthers are strip-shaped, with slender filaments, borne under the receptacle; the style is extremely short, Stigma is raw; receptacle (lotus cell) is 5-10 cm in diameter. The nuts are oval or ovate, 1.8-2.5 cm long, and the peel is textured and hard, dark brown when ripe; the seeds (lotus seeds) are oval or oval, 1.2-1.7 cm long, with red or white seed coats. The flowering period is from June to August, and the fruiting period is from August to October.