Tapping a knife on a cutting board before cutting something is a technique often used by professional chefs and experienced cooks. The primary purposes of this action are:
Alignment: When you tap the knife on the cutting board, it helps to ensure that the blade is properly aligned and straight. Sometimes, during the cutting process or after cleaning the knife, the blade might slightly shift or turn. Tapping the knife on the cutting board realigns the blade, making sure that you have better control and precision during cutting.
Safety: Tapping the knife on the cutting board is also a safety measure. By doing this, you make sure that the knife's blade is in contact with the cutting surface and not hovering above it. This reduces the risk of accidentally cutting yourself or others while handling the knife.
Preventing Food from Sticking: Some ingredients can be sticky or wet, and this can cause them to adhere to the blade during cutting. Tapping the knife on the cutting board helps shake off any excess water or food particles, preventing the ingredients from sticking to the blade and interfering with the cutting process.
Consistent Cuts: By aligning the blade and ensuring it is in contact with the cutting board, you achieve more consistent cuts. This is especially important when precision is required, such as in fine dicing or julienning.
Rhythmic Cutting: In professional kitchens, tapping the knife on the cutting board can become part of a cook's rhythmic cutting technique. It helps create a flow and rhythm during the cutting process, increasing efficiency and speed.
While tapping a knife on the cutting board can be a useful technique, it's essential to practice proper knife safety and handling at all times. Always cut away from your body, keep fingers away from the blade, and use a stable cutting board to prevent accidents and injuries.