A grignette blade is a baking tool used to mark the surface of bread dough before baking. It looks like a small knife with a curved blade that allows for precise and decorative cuts on the surface of the dough.
The grignette blade is used to make incisions or surface cuts on the surface of the bread dough just before baking. These cuts allow the dough to expand in a controlled manner during baking, creating a nice texture and crisp crust on the bread.
The grignette blade is typically used to make razor-like cuts on the dough, but it can also be used to create decorative patterns or to cut specific shapes on the dough surface.