Making tough biscuits requires hot powder preparation. When making this kind of biscuit, the dough needs to be prepared with high extensibility, so the biscuits are crisp and chewy. And the surface of tough biscuits is relatively smooth, and the patterns are usually concave.
Some people who know more about biscuits may know that cold powder and hot powder can be applied to the production of different kinds of biscuits. They also have different characteristics, and the taste and appearance of biscuits are also different.
Hot powder is usually used in the production of tough biscuits. When making this kind of biscuit, we need to make the dough with high extensibility, that is, it must be stiffened to a certain extent. The biscuits made in this way are relatively crisp and chewy.
At the same time, the surface of tough biscuits made of hot powder is generally smooth, and the patterns on its surface are usually concave, while the patterns of crisp biscuits opposite it are usually convex.