FOOD PROCESSING BAKERY EQUIPMENT

In baking, a puff pastry is a light, flaky, unleavened pastry containing several layers of fat which is in solid state at 20 °C (68 °F). In raw form, puff pastry is a dough which is spread with solid fat and repeatedly folded and rolled out (never mashed, as this will destroy layering) and used to produce the aforementioned pastries. It is sometimes called a "water dough" or détrempe.

The gaps that form between the layers are a result of the puff pastry rising as the water evaporates into steam during the baking process. Piercing the dough will prevent excessive puffing, and crimping along the sides will prevent the layers from flaking all of the way to the edges.