Most kamado grills are ceramic. Because of this, they have superior heat retaining characteristics as opposed to metal charcoal grills. This creates amazing flavors from the smoke and moisture contained inside the grill. The food will absorb the flavors deeply. Big Green Eggs are usually much heavier than conventional charcoal grills. The start up time is significantly less with a kamado grill. The kamado grill can be ready in 15 minutes leaving the surface cooler than metal grills. Also, weather resistant kamado grills will not rust like other grills.