To test seal strength and overall durability of the best cocktail shakers, we filled each shaker with 5 oz. water and ½ cup of ice, created a tight seal or closed the lid (depending on whether it ...

“A Boston-style shaker has a 16-ounce mixing glass that can be chilled and used to serve beer, too,” he says, adding that “if the shaker is insulated, that’s a plus.