Cocktails

Fireman's Sour

Fireman's Sour is an alcoholic cocktail built on Light Rum. It leans sweet, citrus and tart. Shaken and served in a Old-Fashioned Glass.

Reviewed by the WhatDrink Editorial TeamSuggest a correction

Cocktailalcoholic7 ingredients

Nutrition information is not yet available for this drink.

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How hard is it to make?

Moderateshaken drink

Why: 7 ingredients, shaken drink, requires shaker

Estimated from the ingredient count and technique.

Ingredients

2.0 ozLight RumBase Spirit
2.0 ozFresh Lime JuiceJuice
4.0 ozSimple SyrupSweetener
4.0 ozGrenadineSweetener
to tasteSoda water (optional)Mixer
to tasteLemon half-wheelOther
1 garnishmaraschino cherryGarnish

How to Make It

Shake first four ingredients with ice and strain into chilled old-fashioned glass.Shaken
Fill with soda water, if desired.Fill
Garnish with lemon and cherry.Garnish

How to Serve

Glass: Old-Fashioned Glass
Temperature: Chilled
Ice: Ice
Method: Shaken

Served Chilled

Taste profile

Primary flavours

Sweet Citrus Tart

Supporting notes

Sparkling Vanilla Aromatic Cherry

Flavor tags are derived from ingredient-level flavor mappings.

Estimated sensory profile

SweetnessDry – Sweet

AcidityFlat – Crisp

FruitinessEarthy – Fruity

Bright and citrusy

What do these dimensions mean?

When to serve

SummerSuggested from its citrus and sparkling notes.

Occasion tags are inferred from drink style, serving format, flavour profile, food-pairing theme, recipe metadata, strict multi-signal supplemental rules, and cached for public page performance.

Diet & lifestyle

Compatible, based on the listed ingredients

Gluten-Free Vegan Vegetarian

Not compatible

KetoLow-CarbLow-Sugar

Diet tags are ingredient-level and nutrition-estimate based. Product brands, preparation methods, quantities, and substitutions may change compatibility.

Alternatives to try

Choose an ingredient to see reviewed substitutions, or filter for a different preference.

Reviewed ingredient substitutions

Light Rum2.0 oz

Aged RumKnown variation

How much to use: Use the same amount; reduce rich sweeteners only if the drink becomes too heavy.
What changes: Aged rum can replace light rum when a fuller, oakier variation is acceptable.

Dark RumWorks, but changes the drink

How much to use: Use the same amount; reduce rich sweeteners if the result becomes too heavy.
What changes: Dark rum can replace light rum when a deeper, heavier rum profile is welcome.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Fresh Lime Juice2.0 oz

Lemon JuiceWorks, with a noticeable change

How much to use: Start with the same amount, then adjust sweetness if needed.
What changes: Lemon juice can usually replace lime juice, but the drink becomes less tropical and more lemon-forward.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Simple Syrup4.0 oz

SugarWorks, with a noticeable change

How much to use: Dissolve well before serving or muddle/shake hard; start with about 1 teaspoon sugar per 1/4 oz syrup.
What changes: Sugar can replace simple syrup if it fully dissolves, but it adds less water.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Agave SyrupWorks, but changes the drink

How much to use: Use slightly less at first, then adjust to taste.
What changes: Agave syrup can replace simple syrup, especially in tequila or mezcal drinks, but it adds an earthy agave note.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Demerara SyrupWorks, but changes the drink

How much to use: Use the same amount, but avoid in very delicate drinks unless you want the darker flavor.
What changes: Demerara syrup can replace simple syrup when a richer, darker sugar note is welcome.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Honey SyrupWorks, but changes the drink

How much to use: Use slightly less at first; honey syrup can dominate delicate drinks.
What changes: Honey syrup can replace simple syrup when a richer, floral sweetness is acceptable.

Vegetarian-compatibleGluten-free-compatible

Maple SyrupNot a neutral swap

How much to use: Use less at first and avoid in delicate citrus or clear drinks unless you want maple flavor.
What changes: Maple syrup can replace simple syrup in darker or whiskey-style drinks, but it is not a neutral swap.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Grenadine4.0 oz

Fresh GrenadineGood swap

How much to use: Use the same amount.
What changes: Fresh grenadine is usually a close substitute for grenadine.

Pomegranate SyrupWorks, with a noticeable change

How much to use: Use the same amount, then adjust sweetness if needed.
What changes: Pomegranate syrup can replace grenadine when a more pomegranate-forward flavor is acceptable.

Vegan-compatibleVegetarian-compatibleGluten-free-compatible

Reviewed component substitutions are not guarantees that the replacement was tested in this exact recipe. Follow the reviewed adjustment note and taste before serving.

Preference filters use current ingredient, nutrition and diet evidence. They are not medical advice, and this database contract does not store user selections.

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Last updated July 12, 2026

Ingredients, measures and method are taken from the source recipe; roles and serving details are mapped from reviewed evidence.

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Frequently asked questions

What is a Fireman's Sour?: The Fireman's Sour is a cocktail made with 7 ingredients, traditionally served in a Old-Fashioned Glass. It is a non-alcoholic drink.
What does a Fireman's Sour taste like?: Fireman's Sour has a flavour profile featuring Sweet, Citrus, Tart, Sparkling. The exact taste varies depending on the brands and measures used.
How strong is a Fireman's Sour?: The strength of Fireman's Sour depends on the exact measures and spirits used. Check the individual ingredient quantities in the recipe above for a precise estimate.
When is a Fireman's Sour typically served?: Fireman's Sour is often suggested for Summer, based on its flavour profile and typical serve.
What drinks are similar to a Fireman's Sour?: If you enjoy Fireman's Sour, the "similar flavour profile" suggestions on this page point to cocktails that share its flavour character. Drinks with a matching spirit base and comparable body and acidity feel closest.
Can I make a Fireman's Sour at home?: Yes. The Fireman's Sour uses 7 ingredients, making it more involved to prepare at home. You will need a Old-Fashioned Glass. Use quality spirits and fresh ingredients for the best result.
What do the sensory profile dimensions mean?: Sensory profile dimensions describe key flavour characteristics: Body (light to full), Dryness (sweet to bone dry), Acidity (flat to crisp), Fruitiness (subtle to prominent) and Boldness (delicate to bold). Each scale helps you compare cocktails at a glance and find ones with similar character.
How do I use sensory profiles to find cocktails I like?: Compare the Body, Acidity and Fruitiness of Fireman's Sour with other cocktails. If you enjoy this drink, look for others with a similar profile. Adjust one dimension at a time to discover new favourites while staying in your flavour comfort zone.