The nature of the protective coating on blueberries

USDA specialists note that the bluish bloom on blueberries serves as a natural protective coating. This wax layer prevents the onset of disease and prevents premature dehydration of the fruit after harvesting. Researchers are currently studying the properties of this wax to further use the data for breeding more hardy blueberry cultivars.

In addition to protective functions, an important component of the berries is anthocyanins, which determine their color and offer a number of health benefits. Experts also clarify that to preserve the protective qualities of the wax layer, it is recommended to wash the berries immediately before consumption. For long-term storage of the harvest and to maintain the nutrients in the fruit, specialists recommend using freezing.