Designed and built by hand, the coal-fired oven at Grimaldi's Pizzeria delivers a unique flavor and consistency that is just not possible from wood or gas ovens. Weighing in at 25 tons and heated by 100 pounds of coal per day (cleanest burning fuel available and environmentally tested), the oven heats up to 1200 degrees. We also purchase special coal from Pennsylvania called anthracite. It actually burns cleaner and more Eco-friendly than gas or wood-fired methods. The intense heat of the oven and coal evenly bakes the pies to create Grimaldi's famous crispy and smokey crust that Zagat has voted BEST PIZZA year after year.