Perhaps you’ve noticed that the most recent obsession among high-minded mixologists is ice: filtered, flavoured, cubed, sphered and even smoked. All very impressive. But it’s really a question of dilution. Some drinks require a hard shake, so vigorous it leaves pebbles of ice floating on the surface. But for others—a traditional Manhattan, say—the key is to cool the drink without adding water. For that, a Seamless Yarai Japanese Mixing Glass is the elegant solution. Ice, booze, stir, pour. Leave the smoke and mirrors to the professionals.