CHEMEX® delivers the purest flavor experience. Chemex is a registered trademark of the Chemex Corporation. Made of non-porous Borosilicate glass which will not absorb odors or chemical residues. CHEMEX pour-over allows coffee to be covered and refrigerated for reheating without losing flavor. Simple, easy to use with timeless, elegant design. Includes a polished wood collar with leather tie. All of the coffeemakers are measured using 5 oz. as 1 cup. 30 oz capacity. Use CHEMEX® Bonded Filters FP-1, FC-100, FS-100, FSU-100.