Yes, tapping a knife on the cutting board before chopping is a common practice among cooks and chefs. This technique is known as "tapping off" or "tapping the knife." There are a few reasons why cooks may choose to tap their knife before starting to chop:
Safety: Tapping the knife on the cutting board helps ensure that the blade is properly aligned and secure in the chef's hand. It allows the cook to establish a firm grip and ensures that the knife is not loose or wobbly, reducing the risk of accidents or injuries during chopping.
Precision: Tapping off the knife helps to position the blade correctly before making the first cut. It allows the cook to establish a starting point and creates consistency in the angle and position of the blade. This can be especially important for tasks that require precise cutting, such as julienning vegetables or slicing delicate ingredients.
Release Food: Tapping the knife on the cutting board can help release any food particles that may be stuck to the blade from previous cuts. By tapping the knife, cooks can dislodge these particles, ensuring a clean and efficient cut during the next chopping motion.
While not all cooks or chefs may use this technique, tapping the knife on the cutting board has become a common practice in many culinary traditions and is considered a helpful step in the preparation process.