Crafted from tempered glass and American oak, this jug is designed for both hot or cold beverages. The lid is hand carved and sanded to fit perfectly. It keeps the hot beverages hot and stops ice from spilling out when pouring cold beverages. The glass is dishwasher safe and the oak is finished with a blend of natural waxes and food grade mineral oils, that makes it smooth to the touch. These oils and waxes exceed FDA regulations for direct and indirect contact with food.