Fresh, ripe blueberries freeze well if you wash them, spread them in a single layer on parchment paper on a baking sheet, freeze until solid and then transfer them to an airtight freezer container, according to MarthaStewart.com. They can be frozen for up to six months by this method.
For maximum flavor, add frozen blueberries to recipes while they're still frozen. A few foods that frozen blueberries can be added to are pancakes, muffins, pies, cobblers, coffee cakes and quick breads. When adapting a fresh blueberry recipe to the frozen variety, which produces more juice, make sure to reduce the other liquids required in recipes such as muffins, says TasteOfHome.com. Also increase the thickener when you use frozen blueberries in pies, tarts or cobblers.