What is a dram of whiskey?

This site is called The Dram Desk, so it is slightly overdue that we explain the word. It turns out to be a genuinely confusing one, because there are two answers and they are almost two orders of magnitude apart.

There is a real unit called the fluid dram. It is defined as one eighth of a fluid ounce - 3.6967 ml in US customary measure, 3.5516 ml imperial. That is less than a teaspoon.

Nobody in a bar means this. If a bartender poured you a fluid dram of whisky you would think it was a joke, and you would be able to drink it without swallowing. The unit survives mostly in pharmacy and in old recipes, and it is the reason the word sounds precise when it is being used informally.

In the UK the quantity is set by law rather than by custom, which makes it unusually easy to be exact about. The Weights and Measures (Intoxicating Liquor) Order 1988 requires spirits sold by the glass to be served "in, or in a multiple of, one of the following quantities, which shall be the same for those parts of any licensed premises" - and the 1994 amendment made those quantities 25 ml or 35 ml.

Two things follow, and they are the useful part. First, a pub cannot mix and match: it picks 25 ml or 35 ml and every spirit measure in the building is that size, which is why a double is always exactly twice a single. Second, the size you get depends on where you are standing - 35 ml is the common Scottish pour and 25 ml the common English one. A dram in Edinburgh is genuinely bigger than a dram in London, and that is a legal fact rather than a stereotype.

There is no law about this and no tradition worth deferring to, so here is the practical version. 1 oz is a dram in the pub sense - enough to nose, taste and consider, and small enough that three whiskeys in an evening is a tasting rather than a session. 1.5 oz is a drink. Above 2 oz you are pouring a double and should know that you are.

For a tasting where you are comparing several, go smaller rather than larger - three quarters of an ounce is plenty, and whiskey tasting sets explains why small glasses make a small pour look correct rather than mean.

A fair question, since most people pour whiskey by eye and enjoy it perfectly well. Three honest reasons, and one non-reason.

• Comparison. If you are tasting two whiskeys against each other, unequal pours make the comparison meaningless before you start.
• Dilution. Adding water is standard practice at higher proof, and a few drops into an unknown volume is a guess. Knowing the pour makes the water repeatable.
• Knowing what you drank. A generous eye pours closer to 2.5 oz than most people believe. A jigger is the cheapest honesty in a home bar.
• Not for cocktails alone. Jiggers are sold as cocktail tools, and they are, but the case above is about neat whiskey - which is why a measure sits on this page rather than on a bar-tools list we do not publish.

A dram-sized pour looks wrong in the wrong glass. One ounce in a 12 oz rocks glass is a film across the bottom; the same ounce in a 6 oz nosing glass sits properly in the bowl and has headspace above it for the aroma to collect. That is the entire argument for a tasting glass, and whiskey tasting glasses makes it at length.

For a single dram the standard answer is a Glencairn-style tulip - the Glencairn page covers the formats. For several small pours side by side, 3.5 oz copitas are better, because at that size a tasting measure fills a useful fraction of the glass. If the whiskey is going over ice, none of this applies and you want a rocks glass.

1. Published increments. A jigger that states every marking on the listing beats one that gives you two volumes and no detail.
2. Ounces or millilitres, stated clearly. These are different tools for different habits and the listings should say which they are.
3. Whether the markings survive. Etched beats printed, and the listing should say which it is.
4. Pour control. A rolled lip and a narrow waist are what stop a measure dribbling down the outside.
5. Glass capacity against a dram-sized pour. For the glasses here, the test is whether one ounce looks deliberate in it.
6. Honest about the gap. No common US jigger measures a UK dram exactly, and every measure below is marked with that limitation.

Top pick - The measure that publishes every marking

OXO Steel Double Jigger

A two-sided jigger with laser-etched increments down to a third of an ounce, dishwasher safe and grippy enough to pour one-handed.

Most jiggers give you two volumes and nothing in between. This one states its full set on the listing - a 1.5 oz side marked at 3/4 and 1/3 oz, and a second side marked at 1/4, 1/2 and 1 oz - which means you can actually hit a pour rather than guess at it. The markings are etched rather than printed, so they survive the dishwasher the listing says it can go in.

What the listing publishes

Capacity

1.5 oz side with 3/4 and 1/3 oz marks; 1 oz side with 1/4 and 1/2 oz marks

Material

Stainless steel

In the box

1 double jigger

Closure

not published

Care

Dishwasher safe

Read from the Amazon product listing on 2026-09-21. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: Every marking is in ounces, so if you are trying to pour a UK-style 25 or 35 ml dram you are converting in your head - 1 oz lands at roughly 29.6 ml, between the two. It is also the most expensive measure here by some way for what is a small piece of steel.

$13.95 - View on Amazon

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Pick 2 - The best gift under $15

Glencairn Whisky Glass, 6.5 oz, Single

One glass, in its own carton, with a published capacity - the single best thing you can buy a whiskey drinker for the price of a sandwich.

Almost nothing under fifteen dollars in this category is worth owning. This is the exception: it is the glass the industry tastes from, it comes in a presentable carton, and someone who already owns six will still be happy to own seven.

What the listing publishes

Capacity

6.5 oz

Material

Crystal (lead content not published on this listing)

In the box

1 whisky glass in a gift carton

Closure

not published

Care

not published

Read from the Amazon product listing on 2026-09-02. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: It is one glass. On its own it can read as an afterthought, so it works better tucked in alongside a bottle than standing as the whole present.

$11.47 - View on Amazon

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Pick 3 - Pouring in millilitres rather than ounces

eispap Japanese-Style Double Jigger, 15 ml and 30 ml

A slim 304 stainless jigger marked in metric - 15 ml and 30 ml - with a rolled lip and a narrow waist you can hold between two fingers.

If you are trying to pour a dram the way a UK bar does, metric is the right vocabulary: the legal measures there are 25 and 35 ml, and converting from ounces every time is friction you do not need. The tall Japanese profile also pours more precisely than a squat jigger, and the rolled lip is what stops it dribbling down the side.

What the listing publishes

Capacity

15 ml and 30 ml

Material

304 stainless steel

In the box

1 double jigger

Closure

not published

Care

not published

Read from the Amazon product listing on 2026-09-21. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: Neither side is actually a UK dram - 30 ml sits between the legal 25 and 35 ml, so it is close to a Scottish measure without being one. And a 15 ml side is too small to be much use for whiskey.

$4.99 - View on Amazon

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Pick 4 - The blender's glass, not the retail one

Glencairn Copita tasting glass in a gift carton

The stemmed tulip the industry actually uses for assessment, at roughly the price of a single standard Glencairn.

The copita is the older shape and the one distillery blenders work with: a stem keeps a warm hand away from the spirit, which matters over a long tasting session. For someone who already owns the standard Glencairn, this is the obvious next glass rather than a duplicate of what they have.

What the listing publishes

Capacity

not published

Material

Lead-free crystal

In the box

1 Glencairn Copita glass in a gift carton

Closure

not published

Care

not published

Read from the Amazon product listing on 2026-09-12. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: It is one glass, so it presents as a small gift unless you buy several. The stem also makes it markedly easier to knock over than a stemless nosing glass, and it will not take ice.

Check price on Amazon

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Pick 5 - The cheapest accurate pour

Winco Stainless Steel Jigger, 1 oz and 2 oz

The plain restaurant-supply double jigger - 1 oz one end, 2 oz the other, stainless, and cheaper than a single dram of anything decent.

This is the jigger that sits behind a lot of actual bars, and at this price there is no argument for pouring by eye. One ounce is a sensible home dram and two is a generous double, which covers almost everything a whiskey drinker needs.

What the listing publishes

Capacity

1 oz and 2 oz

Material

Stainless steel

In the box

1 double jigger

Closure

not published

Care

not published

Read from the Amazon product listing on 2026-09-21. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: Two volumes and no intermediate markings at all, so anything between 1 and 2 oz is guesswork. It is also unlined and plain - a functional object with nothing to look at, which matters if it is meant to be a gift.

$4.49 - View on Amazon

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Pick 6 - A six-whiskey flight

Glassique Cadeau Stemless tulip tasting copitas, set of 6

Six 3.5 oz stemless tulips - the format for tasting a lot of things in one sitting without a rack of stems to knock over.

Stemless survives a crowded table far better than stemmed, and six is the count that lets two people compare three whiskeys each. At 3.5 oz the measure is deliberately small, which is the right way to taste six of anything.

What the listing publishes

Capacity

3.5 oz

Material

Crystal

In the box

6 glasses

Closure

not published

Care

not published

Read from the Amazon product listing on 2026-09-12. Where a row says not published, that specification is genuinely absent from the listing - we do not estimate one. How we work.

The catch: A stemless glass puts a warm hand against the bowl, which is the exact problem stems were invented to solve - fine for a short flight, less so for a long one. And like any 3.5 oz glass, these are not drinking vessels.

$42.99 - View on Amazon

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For the glass a dram belongs in, whiskey tasting glasses and the Glencairn glass. For comparing several at once, whiskey tasting sets. For whiskey over ice instead, rocks glasses. For keeping the bottle you are pouring from, storing whiskey. For what to do with the dram once it is poured, whiskey water droppers and pipettes covers how much water to add.