I will quit picking my rhubarb very soon and am looking forward to picking blueberries. I do not have any blueberry bushes on my own property but I have traveled to some wonderful blueberry farms to pick. Blueberries are so easy to freeze and when picked at the peak of their season add wonderful flavor to anything you add them to.
The National Center for home Food Preservation has two ways you can freeze blueberries. One is the dry pack which involves laying the unwashed blueberries out on a cookie sheet, freezing them til they are like little marbles then packaging them in freezer bags or containers. You wash them right before using. Washing them before freezing can cause the skins to get tough if there is any moisture left on them.
The second way to freeze blueberries is crushed or pureed. For this process you wash the berries first then use a food processor, blender or sieve to crush or puree them. For each quart of berries you add one to one and an eighth cups sugar. Stir until the sugar is dissolved then package in your freezer containers and freeze. Frozen blueberries will remain safe indefinitely as long as they are continuously frozen but will lose some quality over time. It is recommended to use them within one year.
Enjoy Blueberry Season!