Thicker gauge metal would make for sturdier construction and provides a heaviness on the cocktail shaker. While many Boston shakers are made of tin for more secure shakes, the glass rim on this Kotai shaker is tempered—the rim is heated up and cooled down for tough glass that gained’t crack https://raymondabzws.blogminds.com/considerations-to-know-about-shaker-cabinets-34350511