What Are Bitters?

Bitters are concentrated, aromatic flavouring agents made by infusing high-proof alcohol with a blend of botanicals — roots, bark, spices, citrus peel, herbs, and, yes, bitter compounds. They're used in tiny quantities (a few dashes at a time) but have a profound effect on the flavour, complexity, and cohesion of a cocktail.

Think of bitters the way a chef thinks of salt and pepper: you might not taste them as a standalone element, but you'd immediately notice if they were missing. They act as a bridge between ingredients, tying everything together into a unified, rounded drink.

A Brief History

Bitters were originally medicinal tinctures — sold in the 19th century as digestive aids and general health tonics. Over time, bartenders discovered their unique flavour contribution and incorporated them into what would become classic cocktail formulas. The Old Fashioned, Manhattan, and Pink Gin all owe their character significantly to bitters.

How to Use Bitters

Most recipes call for "dashes" — a dash being roughly 0.6–0.9ml, or what comes out of a controlled shake of the bottle through its dasher top. Two dashes is a standard addition. Always add bitters after your spirits and mixers so you can control exactly how much goes in.

Because bitters are so concentrated, a little goes a long way. Too many dashes and the bitterness can overpower the drink. When in doubt, start with less.

The Essential Bitters Bottles

Angostura Aromatic Bitters

The most important bottle in any collection. Made in Trinidad using a closely guarded recipe, Angostura bitters deliver warm spice, clove, cinnamon, and a complex herbal bitterness. Used in the Old Fashioned, Manhattan, Trinidad Sour, Champagne Cocktail, and countless others. If you own one bottle of bitters, make it this one.

Peychaud's Bitters

Lighter and more floral than Angostura, with cherry and anise notes. Essential for the Sazerac and a frequent companion in New Orleans-style cocktails. Its bright red colour also adds a subtle visual element to drinks.

Orange Bitters

A drier, citrus-forward bitter with a zesty orange peel character. Excellent in Martinis, Negronis, and Old Fashioneds. Regans' Orange Bitters No. 6 and Fee Brothers West Indian Orange Bitters are two well-regarded options that taste quite different from each other — worth trying both.

Mole or Chocolate Bitters

Rich with cocoa, cinnamon, and dried chilli warmth. Beautiful in whiskey cocktails, especially Mezcal Old Fashioneds and tequila-based drinks. The Bittermens Xocolatl Mole Bitters are particularly well regarded.

Celery Bitters

An unusual but useful addition for savoury cocktails. Works brilliantly in a Bloody Mary or a vegetable-forward Bloody Caesar. Also interesting in gin-based drinks.

Aromatic vs. Potable Bitters

It's worth knowing there are two categories:

  • Aromatic (dasher) bitters — High ABV (typically 40–45%), used by the dash. Not consumed on their own. Examples: Angostura, Peychaud's, orange bitters.
  • Potable bitters — Lower ABV, served as drinks themselves or in larger quantities. Examples: Campari, Aperol, Fernet-Branca, Amaro Nonino.

Making Your Own Bitters

DIY bitters are a rewarding project for curious home bartenders. The basic process involves steeping bittering agents (gentian root, wormwood, cinchona bark) alongside flavour botanicals in neutral high-proof spirit for several weeks, then straining and blending. While it takes patience, homemade bitters can be tuned precisely to your taste preferences and make excellent gifts.

Building Your Bitters Collection

Bitters Flavour Profile Best Used In
Angostura Aromatic Warm spice, clove, herbal Old Fashioned, Manhattan, Champagne Cocktail
Peychaud's Floral, cherry, anise Sazerac, New Orleans cocktails
Orange Bitters Citrus, dry, zesty Martini, Negroni, Old Fashioned
Chocolate/Mole Bitters Cocoa, chilli, cinnamon Mezcal Old Fashioned, Whiskey drinks

Start with Angostura and orange bitters. From that foundation, you can make dozens of classic cocktails — and you'll have a much better sense of what additional bottles your palate actually craves.