Enjoy the best moment of coffee with the And Jacob cup. The borosilicate cup keeps the coffee hot. For a special occasion, for daily use! Borosilicate glass is specially designed to increase its strength and resistance to thermal shock compared to normal glass. As with all glassware, handle with care. Can be used in the dishwasher Borosilicate (pyrex) can be washed normally with dishwashing products. Metal fibers must be avoided so as not to scratch the glass. You use soft fibers or sponges. Handle with care since even though it is borosilicate glass, a strong blow may break the cup. Can be used in the dishwashe