Can processed Cornus officinalis (Shanzhuyu) be stored for a long time?

Generally, processed Cornus officinalis (Shanzhuyu) is not recommended for long-term storage. The specific reasons are as follows:

Processed Cornus officinalis contains certain amounts of sugars and mucilage. During long-term storage, if the environmental humidity is high, it can easily absorb moisture, leading to mold growth and the proliferation of molds and bacteria. Additionally, improper storage temperatures—particularly excessive heat—can accelerate the oxidation and decomposition of its components. Moreover, as storage time increases, the content of active ingredients in processed Cornus officinalis gradually decreases, thereby affecting its medicinal efficacy.

In daily storage, certain measures can be taken to prolong its shelf life. It is important to protect it from moisture and pests. Vacuum sealing or placing it in sealed bags can reduce air exposure and slow oxidation. At the same time, placing an appropriate amount of desiccant in the container can effectively prevent moisture absorption and mold growth. If any signs of deterioration, blackening, or mold appear, the affected portions should be promptly removed to prevent compromising the rest of the herb.

When purchasing processed Cornus officinalis, attention should be paid to checking the production date and expiration date. Usage should be reasonably planned to avoid prolonged storage that may lead to expiration of the herbal material.