Key points
- A 500 to 600 millilitre mixing glass makes one or two stirred drinks with room for ice. Larger glasses are for batches and are heavy to hold full.
- A thick, heavy base keeps the glass still while you stir and keeps the drink cold. A thin base is where cheap mixing glasses crack.
- A pouring spout is worth having. Without one, a full glass of ice and liquid dribbles down the side.
- A pint glass works until you know you stir often. Then buy a proper one in lead-free crystal with a seamless or well-finished wall.
A mixing glass is the stirred-drink equivalent of a shaker: a heavy beaker with a spout, filled with ice, where a drink is stirred for twenty or thirty seconds and then strained out. It is also the piece of barware most often reported broken, and the one most people buy before they know whether they stir often enough to need it. Here is what to look for, and when a pint glass will do.
If you want the quick pick: a 500 to 600 millilitre mixing glass with a heavy base and a pouring spout, in lead-free crystal, bought once you have stirred a dozen drinks in a pint glass and found you enjoy it.
What a mixing glass is for
Stirred drinks, the spirit-forward ones made without juice or egg, are chilled and diluted by stirring with ice rather than shaking. Shaking adds air and tiny ice shards; stirring keeps the drink clear and silky. A mixing glass gives you a vessel to do that in, a wall to run the spoon along, and a view of the drink as it chills.
A shaker tin does the same job without the view and with faster chilling. A pint glass does it with less weight and no spout. The mixing glass is the refinement.
Capacity
One stirred drink is about 3 ounces of liquid before dilution, plus enough ice to fill the glass two thirds. Two drinks is 6 ounces. Both want a glass of 500 to 600 millilitres, roughly 17 to 20 ounces, so there is room to stir without ice climbing over the rim.
Smaller glasses, around 350 to 400 millilitres, crowd the ice and splash. Larger glasses, 750 millilitres and up, are for making a round of four and are heavy and awkward for one.
The base
A mixing glass should be bottom-heavy. A thick, solid base keeps it planted on the counter while you stir with one hand, insulates the drink from the counter, and resists thermal shock. Thin-based glasses walk across the counter, warm from below, and crack when ice meets a room-temperature glass.
Weight is the proxy. A 550 millilitre glass that weighs 600 grams or more has a serious base. One that weighs 300 grams does not.
The spout
A pouring lip, formed into the rim on one side, lets a full glass of ice and liquid pour in a controlled stream through a julep strainer. Without one, the pour runs down the outside of the glass. Some beautiful glasses have no spout for the sake of symmetry; they are display pieces.
Seams and finish
Pressed glass has a visible vertical seam from the mould. It is cheaper and perfectly functional, and the seam can catch a bar spoon as it circles. Glasses made without a seam are blown or finished to remove the line, which gives the spoon a smooth run and looks cleaner. It is a nicety that experienced stirrers care about and beginners do not notice.
Cut and etched patterns on the outside look good and add grip. They do nothing for the drink.
Material
Lead-free crystal is the material of choice: strong enough for a thin wall, clear, and it tolerates the top rack of a dishwasher though most owners hand wash. Soda-lime glass works and is heavier for the same strength. Leaded crystal is lovely and should be hand washed, as our guide to glass materials covers.
Thermal shock is the enemy of all three. Chill the glass in the freezer or with ice and water before use rather than hitting a warm glass with ice, and never rinse a cold glass in hot water.
The spoon
A mixing glass wants a long bar spoon, 30 to 40 centimetres, with a twisted shaft, so the bowl reaches the bottom and the spoon spins in the fingers as it circles. Our guide to bar tools worth owning covers the spoon and the strainer that go with the glass.
Who should not buy one yet
Anyone who has not stirred a drink. Start with a pint glass or a shaker tin, make a dozen stirred drinks, and buy a mixing glass when you know it will be used. Anyone with a very small cart, because a mixing glass is bulky for how often it is used. And anyone who shakes everything.
How we choose mixing glasses
When we recommend mixing glasses in our decanters and tools section, each pick lists capacity, weight, base thickness, spout, seam, material and dishwasher guidance, plus what owners report about cracking after a year, since that is where mixing glasses fail. Our full process is on the how we choose page.
Final verdict
Five to six hundred millilitres, a heavy base, a spout, lead-free crystal, and chill it before the ice goes in. Buy it after the pint glass has proved you stir.
Questions people ask
What size mixing glass do I need?
Five hundred to six hundred millilitres, roughly 17 to 20 ounces, for one or two drinks with a full load of ice. Anything under 400 millilitres crowds the ice. Anything over 750 is a batching glass.
Can I stir in a shaker tin instead?
Yes. Metal transfers cold faster and dilutes slightly quicker, and you cannot see the drink, but a tin stirs perfectly well. A mixing glass is about control and about watching the drink, not about necessity.
Why do mixing glasses crack?
Thermal shock and thin bases. A glass at room temperature filled with ice, or a cold glass rinsed in hot water, can crack at the base. Thick, heavy bases in lead-free crystal resist it. Pre-chilling the glass in the freezer reduces the shock rather than causing it.
