The container of the Halogen Cooking Pot is made of glass as it is transparent, easy-to-clean, durable and smell-free. There are different reasons why the container cracks, such as frequent beating, careless knocking during cleaning, or placing the container at high audio frequency environment for a long time. It is a fact that glass is more fragile than metal, but all of our products pass quality tests and safety certification before releasing. The pot will be fine if used and maintained carefu