The coffee Carafe Jugs machine body is all built stainless steel, which it's dureable Durable construction made of heavy-duty ,stainless steel so it is rustproof and impervious to acidic beverages Not glass lined,no risk of cracking;Spill proof design with press button top Smooth surface Double wall, Keeps Hot and Cold-The thermal carafe can be used to store a many hot and cold beverages, such as coffee, tea, milk drinks, water and more This ensure better sealing and healthy.