Refrigerate until firm, around 20 minutes, the dough or the pies when they become too sticky prior to baking.
Store the pies, lightly wrapped, at room temperature for a couple of days. You can freeze them to store longer.
If using other berries (e.g. raspberries), you can add or reduce the sugar in the filling.
After chilling the filling, you can stir it with a spoon to make it easier to work with. Do not heat it up.