Fresh Undaria pinnatifida is best preserved and refrigerated, and dried Undaria pinnatifida can be sealed in a fresh-keeping bag and stored in a cool and dry place or refrigerated. Fresh Undaria pinnatifida is easy to deteriorate and can only be stored for about 1-2 days without any treatment.

If it is pickled Undaria pinnatifida, the storage time is generally long, which can be kept for about 2 weeks at room temperature in summer, 1 month at room temperature in winter and 6- 12 months in refrigerator.

No matter fresh or dried Undaria pinnatifida, you can't eat it if it is moldy. Moldy Undaria pinnatifida carries more microorganisms such as bacteria, which easily leads to physical discomfort.