Unfortunately, not exactly. If you seal shut your hand pies without a little slit in the dough, as the hand pie bakes, the build-up of steam inside will cause the edges to pop open so that they can escape. We pre-empt this from happening by cutting a small slit or stamping out a small shape. But the jam and raspberries can get really juicy and occasionally seep out of these steam vents and onto the tray.