Blueberries are delicate, petite and round. Their skin has a soft, hazy white coating, which is known as the bloom. The bloom forms a natural waterproofing and helps protect the berries from the sun and other natural elements. Blueberries have a sweet and woodsy flavor with a low acid finish when ripe.
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Blueberries display their deep blue coloring due to the concentration of anthocyanin present in their skin. Blueberries have the highest level of anthocyanins versus any other fruit or vegetable.
The best storage containers are glass or plastic. Blueberries react with metal and each causes the other to discolor. If freezing blueberries, be aware that they expand when frozen, so the container should be slightly larger to accommodate the expansion.