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Jerry Can Spirits®

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Bar Tools

Bitters Bottle

A bitters bottle is a small glass bottle, 9cl or 20cl in Urban Bar’s own bitters bottles, with a dasher top that lets out a few drops at a time. You decant bitters into it from the maker's bottle so that every dash comes out the same size. It serves any drink measured in dashes, including the Old Fashioned, the Bamboo and the Pink Gin.

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The tool

About the Bitters Bottle

A Dash Is a Measurement

A dash is roughly 0.6 to 0.9ml, a little under a fifth of a teaspoon, and the dasher top is what makes it repeatable. The insert lets out a few drops per flick and no more.

Bitters are seasoning, so small errors show. The three dashes in a Bamboo come to about 2.5% of the drink: small enough to vanish in a careless pour, and strong enough to show when doubled.

The Maker's Bottle Pours Unevenly

Shop bottles of bitters have restrictor tops of their own, and how much leaves them depends on the angle and how hard you shake. Decanting into dasher bottles gives you one action for every bitters on the rail.

It also lets you label clearly. Aromatic and orange bitters look alike through brown glass, and a wrong pick is easy in a hurry.

One Sharp Flick Per Dash

Turn the bottle fully upside down over the glass and flick it down once, stopping hard. The stop does the work; a slow tilt dribbles.

Fill to the shoulder only. With the neck full, the insert floods and the first dash comes out as a stream.

Count aloud while you learn. Two dashes into a mixing glass looks like nothing, and the urge to add more is how a drink ends up over-bittered.

Tinted Glass and a Tight Insert

Light fades bitters, so amber or cobalt glass is the safer choice on an open shelf; clear glass is fine in a cupboard. A tight insert matters more than the shape of the bottle.

Dasher bottle against the alternatives

Dasher bottle

What comes out
A dash of roughly 0.6 to 0.9ml (our measure)
Best for
Everyday bitters on the rail
Drawback
Needs decanting and labelling

Maker's own bottle

What comes out
A variable dash, set by the shake
Best for
Occasional use
Drawback
Harder to repeat exactly

Dropper bottle

What comes out
Single drops
Best for
Tinctures and saline
Drawback
Slow for a recipe in dashes

Atomiser

What comes out
A fine mist
Best for
Scenting a glass or the top of a drink
Drawback
Too little for a recipe dash

In our experience bitters at full strength keep for years. The aroma goes first, so a bottle that smells faint has faded rather than spoiled.

Using it

Using the Bitters Bottle

Usage

Holding Angostura, orange bitters, Peychaud's or a house tincture on the rail, ready to dash one-handed. A firm dash from a dasher top is roughly 0.6 to 0.9ml, which is what our recipes mean by a dash.

Pro Tip

Label the base as well as the side. Caps get swapped, and three brown bitters in matching bottles look the same until you taste them.

Professional Tips

  • Turn it fully upside down and give one sharp flick for each dash.
  • Fill to the shoulder, not the neck, or the insert floods.
  • Label the side and the base. Most bitters are brown.
  • Keep it out of direct sunlight, which fades the aroma.

Alternatives

Budget Alternative

A plain glass bottle with a push-in plastic dasher insert does the whole job. An emptied maker's bottle, rinsed and refilled with the same bitters, works too.

Premium Option

A heavy cut-glass Japanese-style dasher with a metal insert. The money buys weight on the rail and a steadier dash; the drink tastes the same.

Specifications

  • Material

    Glass, with a plastic or metal dasher insert

  • Capacity

    9cl and 20cl in Urban Bar’s own bitters bottles; about 50ml suits a home bar by our guidance

  • Details

    Dasher insert that releases a few drops per flick; amber, cobalt or clear glass

Go further

More to explore

Common Questions

How much is a dash of bitters?

Roughly 0.6 to 0.9ml from a dasher top, a little under a fifth of a teaspoon. That is what our recipes mean by a dash. A shake from the maker's own bottle varies with the angle and the force, so two of those can be very different from two from a dasher.

Why decant bitters at all?

For a repeatable dash and a faster one. A dasher top gives a similar amount every time and works one-handed, and a bottle you fill yourself can be labelled clearly. The maker's bottle pours more variably, depending on how hard you shake it.

Do bitters go off?

Most aromatic bitters are high in alcohol and do not spoil, but light and air fade their aroma over months. Keep them capped and in the dark, and taste an old bottle before relying on it. Low-alcohol and glycerine-based bitters keep less well.

How do you dash consistently?

Turn the bottle fully upside down over the glass and give one sharp downward flick that stops dead. The stop throws the dash out; a slow tilt dribbles. Fill only to the shoulder, because a full neck floods the insert and the first dash comes out as a stream.

Can I use a dropper bottle instead?

Yes, if you count drops. A dropper releases one drop at a time, much less than a dash, so two dashes in a recipe becomes a run of drops rather than two squeezes. Droppers suit tinctures and saline better than everyday bitters.

What size bitters bottle should I buy?

About 50ml for a home bar, by our guidance. At two dashes a drink it covers roughly thirty drinks, and a small bottle empties before the bitters lose their aroma. Urban Bar’s own bitters bottles are 9cl and 20cl; the larger suits a bar that gets through bitters quickly.

What else can go in a dasher bottle?

Saline solution, absinthe for rinsing a glass, or any strong tincture. Avoid syrups and anything low in alcohol. They clog the insert and can grow mould in a bottle kept at room temperature.

Sources.

Checked between 18 October and 19 October 2026.

  1. Urban Bar, “Bitters Bottle Diamond Cut 20cl”.
  2. Urban Bar, “Handmade Crystal Bitters Bottle Diamond Cut 9cl”.
  3. The Oxford Companion to Spirits and Cocktails (David Wondrich), “Cock-Tail” (secondary source: the first unambiguous appearance in print of the formula and name together, Hudson, New York, 1806).
  4. The Oxford Companion to Spirits and Cocktails (Robert Hess), “bitters” (secondary source: Stoughton’s Stomachic Bitters, established around 1690, the product that defined the category; bitters as patent medicines).
Make something

Made with the Bitters Bottle

Guide by Jerry Can Spirits · Updated 19 October 2026

First Pour

The book that comes before the bottle.

First Pour is our short companion to Expedition Spiced Rum. How it is built, how to drink it, and the first serves to try. Yours free, with 10% off your first order.