Dry in the shade in a cool and dry place and let the green shell fall off by itself. Secondly, clean the surface of walnut with clear water to make it look clean. Finally, expose yourself to the sun, dry walnuts, put them in a dry basket or basket, and put them in a cool and dry place to avoid getting wet or putting them in a hot place. Carya cathayensis can be preserved for about one year, and domestic walnuts can be preserved for about half a year.

Walnut, also known as walnut, belongs to Juglandaceae. Together with almonds, cashews and hazelnuts, it is known as the world-famous "four dried fruits". Walnut kernel is rich in nutrition, with more fat and carbohydrate per 100g protein 15 ~ 20g. It also contains calcium, phosphorus, iron and other trace elements and minerals, as well as carotene, riboflavin and other vitamins. It's good for the human body. It is one of the nut foods deeply loved by ordinary people. Known as "Long live the son" and "longevity fruit".

Walnut is sweet and warm, and enters the kidney, lung and large intestine. It can tonify kidney, strengthen waist, warm lung, relieve asthma, moisten intestine and relieve constipation.

Indications: cough, asthma and lumbago due to kidney deficiency; (wood sandwich in the core) tastes bitter and warm; Tonifying kidney and astringing essence.

1. Removing blood stasis: used for blood stasis amenorrhea, blood stasis abdominal pain, blood stasis mania, traumatic injury and blood stasis block.

2. Runchang laxative: it is difficult to solve the stool used for constipation. This product can relieve bitterness, disperse blood stasis, enter the liver meridian and divide blood, and has strong effects of promoting blood circulation, regulating menstruation, removing blood stasis and promoting tissue regeneration, and is suitable for patients with severe blood stasis. In addition, it also has the function of moistening intestines and relieving cough.