Chiffonade is best done on a flat surface to ensure even, consistent cuts and to prevent the herbs from bruising or tearing. A stable surface allows for precise rolling and slicing.
Chiffonade, a slicing technique used primarily for leafy herbs like basil or mint, involves rolling the leaves tightly into a cylinder and then slicing them thinly perpendicular to the roll. This creates delicate ribbons. Performing this technique in the air or while hanging would make it nearly impossible to maintain the necessary control and pressure. A flat surface provides a stable base for rolling the leaves tightly and applying even pressure while slicing. Without a flat surface, the leaves would likely slip, tear, or be cut unevenly, resulting in a less aesthetically pleasing and texturally consistent chiffonade. The goal is to create uniform, thin strips, and a flat surface is crucial for achieving this.
To prevent bruising the herbs, ensure your knife is extremely sharp. A dull knife will crush the leaves instead of slicing cleanly, leading to discoloration and a loss of flavor.