Cooking involves both science and artistry. As scientists research new cooking techniques, chefs implement these techniques creatively in their kitchens to achieve excellence. A chef's skill is shown through attractive presentations that appeal to customers visually, similar to how an artist uses a paintbrush. Cooking is also a scientific process, as methods like boiling and freezing relate to scientific principles. A chef must understand topics like food safety, food properties when heated, and how to preserve nutritional value. Modern kitchen equipment helps chefs prepare food conveniently and quickly. All equipment requires safe, careful handling and maintenance to avoid accidents and contamination.