Once filled and rolled, wrap the finished pumpkin roll tightly in a piece of plastic wrap and then again in a layer of foil. Make sure that the ends are sealed well; this is important. After properly wrapping the pumpkin roll you can keep them in the refrigerator for 2-3 days or you can freeze them for up to a month. When ready to serve the pumpkin roll, remove it from the freezer or refrigerator and allow the roll to come to room temperature before serving.