Wash and drain the trimmed berries in a colander to remove as much water as possible. Dry them by patting carefully with a paper towel. Then spread the berries on a large baking sheet to make one layer, and place in freezer until berries are frozen. If your freezer isn’t big enough for the pan, place the berries in a container that will fit into your freezer. Once frozen, place in freezer sealable plastic bags and remove as much air as possible to prevent freezer burn. One tip for removing air is to put a straw in the bag, zip closed as far as possible, then suck the air out of the bag. Pinch the straw shut, pull it from the bag, and zip the bag the rest of the way. When you are ready to use the berries, thaw in the refrigerator. Enjoy !