Pictures of the difference between Chenpi mold and white frost are as follows:

Mold is usually brownish-yellow or dark green, while white frost is frost-like white.

Picture of moldy Chenpi:

Picture of white frost of Chenpi:

Preservation of Chenpi:

Preservation of Chenpi should not be put into the refrigerator, because the low temperature of the refrigerator can make the humidity inside the freezer, and the Chenpi is more prone to deterioration by the moisture. Collection of Chenpi, should take a careful look before storage, after confirming the dryness without moisture, Chenpi is best wrapped in a plastic bag and then put into a sealed glass bottle, at least once a quarter to check, especially high temperature and humidity in the summer, you should carefully check the Chenpi with or without the phenomenon of returning moisture or insect moths.

As long as the preservation of the right place, Chenpi can be stored for a long time, with the growth of the collection of years, its volatile oil content is greatly reduced, the relative increase in the flavonoid content, the more mellow the aroma, the better the quality.