Cocktail Shakers: Boston vs Cobbler vs Parisian

Every cocktail shaker does the same basic job: it holds ice and liquid in a sealed space so you can chill, dilute and aerate a drink by force. The differences are in how the pieces lock together, how much ice fits inside, whether a strainer is built in, and how easy the thing is to open when it is frosted over and stuck.

Three designs cover nearly every shaker sold for home use. The two-piece Boston, the three-piece cobbler and the two-piece Parisian each have real strengths and a few annoying habits. This guide walks through each one, explains sizes and materials, and ends with a plain recommendation depending on how often you mix and how many drinks you make at once.

What a good shaker has to do

A shaker needs three things. It must seal well enough that a hard shake does not spray the drink across the room. It must hold enough ice that the liquid gets cold before the ice melts away. And it must open cleanly on demand, because a drink left sitting on ice keeps watering down.

Metal transfers cold faster than glass, so all-metal shakers frost up quickly and give a clear signal that the drink is ready. Glass lets you see what is inside, which helps when you are learning, but it is heavier and can chip or crack if knocked against a tin.

The Boston shaker

A Boston shaker is two open-topped vessels that fit into each other at an angle. The classic version pairs a large metal tin with a pint mixing glass. The more common bar version today is tin-on-tin: a large tin of about 800 ml (28 oz) and a smaller one of about 530 ml (18 oz). Cold makes the metal contract, which pulls the seal tighter during the shake.

The advantages are capacity and simplicity. Two tins hold enough ice for two drinks at once, there are no threads or tiny holes to trap residue, and both pieces rinse clean in seconds. The trade-off is that you need a separate strainer, and opening the seal takes a little practice: hold the shaker with the large tin in one hand and strike the rim of that tin with the heel of the other hand where the two pieces meet at the steepest angle.

• Weighted tins (with a thicker base) are easier to seal and balance
• Tin-on-glass lets you watch the drink but is heavier and less forgiving
• Matched tins from the same maker seal more reliably than mixed brands

The cobbler shaker

A cobbler has three parts: a tall tumbler, a lid with a strainer built in, and a small cap that covers the strainer. It is the shaker most people picture, and it is self-contained, so you can shake and pour without any other tool.

Its weaknesses show up in use. The metal contracts in the cold, and the lid often locks onto the tumbler so tightly that it will not twist off until it warms slightly. The cap can leak if it is not seated fully. The built-in strainer holes are fairly large, so small ice shards and herbs slip through, and many cobblers hold only enough ice for one drink. Cleaning the strainer holes properly also takes more effort than rinsing two plain tins.

• Run the lid under warm water for a few seconds if it sticks
• Choose one with a capacity of at least 700 ml if you want to make two drinks
• Pour through a fine strainer as well for drinks served up

The Parisian or French shaker

A Parisian shaker is two metal pieces like a Boston, but the top is a dome-shaped cap that slides over the base instead of nesting at an angle. There is no built-in strainer. The shape is elegant, the seal is good, and it rarely jams the way a cobbler lid does.

The drawbacks are price and versatility. Parisian shakers are usually sold as design pieces, and their capacity tends to sit between a cobbler and a full Boston set. Like the Boston, it needs a Hawthorne strainer to pour.

Materials and sizes

Stainless steel is the standard for good reason: it is durable, does not hold odors and chills fast. Copper-plated and colored finishes look attractive, but plating can wear with frequent washing, so check whether the inside is plain steel. Plastic shakers are light and fine for children's drinks, but they insulate rather than chill, so the shake takes longer.

Size matters more than people think. A shaker that is too small leaves little room for ice, so the liquid churns instead of hitting cold ice with force. Aim for the large vessel to hold at least twice the volume of the drinks you are making, plus ice.

Which one to buy

If you mix regularly or make drinks for guests, buy a weighted tin-on-tin Boston set and a Hawthorne strainer. It is the fastest, least fussy setup and lasts for years. If you make an occasional drink and want one self-contained tool, a well-made cobbler is reasonable, as long as you accept that the lid will sometimes stick. Choose a Parisian if you value the look and are happy to pay for it.

Common questions

Why does my Boston shaker leak?

Usually the tins were not tapped together firmly enough to seal, or they come from different makers and the rims do not match. Push the small tin into the large one at a slight angle, give it a firm tap, and check that you can lift the whole shaker by the small tin before you start.

Can I use a cobbler shaker for two drinks?

Only if it is large enough. Many cobblers hold about 500 ml, which leaves little room for ice once two drinks of liquid go in. Overfilling gives a weaker shake and a warmer, more diluted result. Make the drinks in two rounds or use a larger shaker.

Is a glass mixing tin safe to shake?

A tempered pint glass made for bar use is generally fine in a tin-on-glass Boston setup, but it can chip at the rim or crack if struck hard. Inspect it often and discard any glass with a chip, since fragments could end up in a drink.