Bernardo Silva Glass Thermos Black 1.5 Liter

Hello, you should wash your thermos with warm water and detergent before first use. You can increase the efficiency of the thermos for hot drinks by pre-heating it with hot water, and for cold drinks by pre-cooling it with cold water. After filling your drink, you can use it by closing the lid tightly. You should clean it by hand using warm water and detergent; you should not wash our product in the dishwasher. We wish you a nice day.