The storage method of VC powder is as follows:
1. Temperature control: VC powder should be stored in an environment between 15 and 25 degrees Celsius, avoiding high temperatures and direct sunlight. Although refrigeration is not required, lower temperatures help extend its shelf life. Avoid placing VC powder in high-temperature environments such as kitchens or cars.
2. Humidity management: VC powder should be stored in a dry place, preferably in a sealed container to prevent moisture from entering. A high humidity environment can cause VC powder to absorb moisture, thereby accelerating its degradation.
3. Avoid light storage: VC powder is sensitive to light, and prolonged exposure to light can cause it to decompose. It should be stored in a dark place, such as a cabinet or drawer, or packaged in opaque containers.