The anthocyanins contained in the white frosted powder and peel of the blueberries are very high in nutrients, so when you wash them Take special care to ensure that the blueberries actually give you the nutrients to absorb.
1. Use salt.
Soak in salted water for ten minutes, then rinse by stirring your hands a few more times, and finally soak in clean water for 10-15 minutes.
2. Use clean water.
If the blueberries are wild blueberries, just clean all that dust off the surface with water.
3. Use vinegar
Wash the blueberries in a ratio of vinegar to water at 1:3, stirring them with your hands for about a minute longer, then soak them in clean water for 10-15 minutes. After washing them this way, the blueberries will probably keep longer in the refrigerator.