The coffee press is made of thickened heat resistant borosilicate glass which can withstand extreme temperature changes.Compared to the metal french press, there is not unbearable scratching noises when you push the filter down.The glass beaker allows you to monitor the whole procedure of making your coffee. Watching the hot water and coffee grounds separate as you press the stainless-steel filter arm.The aroma of the coffee fills your being,provide the best time to enjoy and relax.