But remember that blueberries can be easily frozen and available for your enjoyment year round. Blueberries can be frozen right in the pint container they are normally packaged in. Just wrap the entire container plastic wrap being careful to cover all holes. Another easy method to freeze berries is to arrange them in a single layer on a cookie sheet and place in the freezer. When frozen, transfer the blueberries to a freezer container or ziplock bag.
Frozen blueberries make great snacks.
Do not wash the berries until just prior to using. Blueberry Baking Basics Blueberries may change color when cooked. Blueberries also contain yellow pigments. In an alkaline environment, such as a batter with too much baking soda, the yellow and blue pigments will turn the blueberries greenish-blue. Using hard, frozen blueberries in batters will reduce the amount of color streaking.