A cocktail shaker is used to mix and chill drinks quickly by shaking ingredients with ice, improving both flavour and texture . In professional settings, two main types dominate: Boston shakers – a two piece system (usually metal tins) preferred by bartenders for speed, capacity, and durability Cobbler shakers – a three piece design with built in strainer, often used for ease and convenience Boston shakers are widely considered the industry standard. They consist of two tins that seal together, allowing quick mixing and easy cleaning, which is why they are used in most professional bars . GenWare Boston shaker cans, available in sizes such as 18oz and 28oz, are made from stainless steel with weighted bases for balance and control during use . This makes them reliable “workhorses” behind the bar. Cocktail shakers are ideal for: Bars and pubs Restaurants and cocktail venues Hotels and hospitality groups Catering and event services Nightclubs and entertainment venues Bar-blenders-and-smoothie-makers Glassware FAQ What is the difference between a Boston shaker and a cobbler shaker? A Boston shaker is a two piece system used by professionals, while a cobbler shaker has three pieces with a built in strainer. Why do bartenders prefer Boston shakers? They are faster, easier to clean, and better suited to high volume service. Are cocktail shakers necessary? Yes, shaking properly chills, mixes, and improves the texture of drinks. What size cocktail shaker is best? Common sizes range from 18oz to 28oz, with larger tins used for multiple drinks.