Combining and rolling out leftover dough scraps creates a crust potentially tougher and less flaky than one made from a single, cold mass. This occurs because the repeated rolling and folding develops the gluten within the dough, leading to a denser texture. The additional handling can also incorporate more warmth into the dough, potentially softening the fat and hindering optimal flakiness during baking.
Minimizing waste in the kitchen is a significant benefit of this practice, allowing bakers to utilize every bit of their ingredients. Historically, resourcefulness in baking was essential, and repurposing trimmings was a common practice. This method also offers an opportunity to create visually appealing crusts, sometimes incorporating the layered effect of the combined scraps into the design. Though potentially impacting texture, it remains a viable and efficient technique, particularly for home bakers.