Based on an ancient design, The Primo Grill and Smoker® has been updated and improved to deliver the most advanced and versatile cooker in today's marketplace. Primo® combines centuries of proven cooking techniques with modern technology. Its advanced design includes a high-tech ceramic material that heats quickly and evenly. It won't crack or break even at temperatures approaching 2300º degrees Fahrenheit and yet it conducts virtually no heat. This seals in heat and keeps air out, thus ensuring food is moist and tender. This also slows the charcoal's burn making the Primo Grill and smoker cheaper to use than other grills and smokers.