How to Properly Handle Puff Pastry
Whether you make your own or buy the frozen stuff, all puff pastry must be treated with care and respect. Always keep the dough covered so it does not dry out, and use only as much flour as needed when rolling. Handle the dough as little as possible to prevent the end product from being tough.
From frozen, whether homemade or store-bought, let the pastry thaw overnight in the refrigerator or for about 30 minutes at room temperature. Do not unfold store-bought pastry while it is still frozen or it may break.
Once thawed, carefully unfold the dough and roll it out on a lightly floured surface. Should any tears or cracks occur, brush with water and gently press back together. If it starts to soften, pop it back in the fridge for a bit. Once rolled or cut to your desired shape, transfer the pastry to your baking sheet before adding in any fillings.
If you have any scraps, do not knead them back together. Instead, layer leftover pieces on top of each other, but then try not to roll out too much.