United Kingdom · 1740

Grog

Also known as Navy Grog, Rum Grog, Bumbo

Grog is a simple, warming mix of rum, water, and citrus that started as a way to keep sailors from drinking their rum ration straight.

warmingrumcitrusspiceddilutenavyhotsimple

ABV

Difficulty

Overview

What this drink is like

The first sip hits with the sharp bite of rum thinned out by water, followed by a bright squeeze of citrus that cuts through the alcohol. It finishes warm and a little spicy if you use the bitters, with a rough, straightforward character that doesn't hide the booze.

Who will like it

This is for people who like spirit-forward, no-nonsense drinks where the alcohol isn't buried under sugar or mixers.

When to drink

Drink this when you want something warming and uncomplicated, like on a cold evening or when you're feeling under the weather.

Ordering tip

Ask for it with dark rum and a squeeze of fresh lime if you want it closer to the naval tradition, or specify a sugar rim if you prefer it less harsh.

Ice: NoneTemp: WarmCost: $2–$5Glass: Old FashionedBatch-friendlyHome bar friendly

Flavor

Taste profile

Grog tastes like watered-down rum with a splash of lime, which is exactly what it is. The hot water opens up the rum's molasses and spice notes, while the lime juice cuts through the alcohol burn. It's thin and warming, more of a functional drink than a complex cocktail. The bitters add a faint clove-like spice on the finish, but the main experience is the raw, honest bite of rum softened by water.

Finish: The finish runs short and warming, with the rum's spice and a lingering citrus tartness fading out quickly.

Primary tastes

sweetsourspicy

Secondary

earthybitter

Aroma

molassesclovecitrus zestcinnamon

Bitternesslow bitterness
Only a faint bitter edge from the bitters and lime pith, nothing that dominates the sip.
Sweetnessmildly sweet
A light sweetness from the rum and optional sugar, but the water keeps it from getting cloying.
Sournessmoderate acidity
The lime juice gives a noticeable tartness that balances the rum's heat.
Strengthmoderate strength
The water dilutes the rum down to a manageable level, but the alcohol warmth is still front and center.
Refreshinglow refreshment
This is a warming, comforting drink rather than a crisp, thirst-quenching one.
Smokinessfaint smoke
A subtle smoky hint if you use a pot-still Jamaican rum, but it stays in the background.
Complexitylow complexity
It's a straightforward mix of rum, water, and citrus with no hidden layers or shifting flavors.

Recipe

Make it at home

Built · Old Fashioned · equal parts on Dark Rum. A navy-strength or overproof rum stands up best to the water dilution

Before you start

Warm up your mug by rinsing it with hot tap water and dumping it out, which keeps the drink hotter for longer. Pull out your rum and squeeze a fresh lime before you start.

Ingredients

Dark RumBase SpiritJamaican or Demerara rum works great here60ml
Hot WaterOtherCan also use cold water for a refreshing version120ml
Fresh Lime JuiceJuiceAbout half a lime; lemon works in a pinch15ml
Demerara SugaroptionalSyrupTraditional grog skips the sugar, but it takes the edge off1 barspoon
Angostura BittersoptionalBittersAdds a clove and cinnamon spice note2 dashes

Garnish: Lime wheel, Cinnamon stick

Tools

Bar Spoon · Mixing
Stirring the hot water and rum together and dissolving the sugar if you use it
At home: A long teaspoon or iced tea spoon
Jigger · Measuring
Measuring the rum and lime juice accurately
At home: A shot glass or measuring cup
Mug or Heatproof Glass · Serving
Holding the drink; it needs to handle hot water without cracking
At home: A thick coffee mug or tempered pint glass
Citrus Press · optional · Garnish
Squeezing the lime juice easily
At home: Your hands, squeezing the lime half firmly

Steps

1
Pour 120ml of hot water into your warmed mug. If you're using the sugar, drop in 1 barspoon of demerara sugar now and stir with your bar spoon until the grains completely dissolve at the bottom.
!Using boiling water right off the stove can scald the rum and mute its flavor; water straight from a hot kettle is enough.
2
Measure out 60ml of dark rum and pour it into the mug. Give it a gentle stir with your bar spoon for about ten seconds so the rum and water mix evenly.
~10s
!Stirring too aggressively cools the drink down faster than necessary.
3
Add 15ml of fresh lime juice and 2 dashes of Angostura bitters if you're using them. Stir again for a few seconds just to bring everything together.
!Using bottled lime juice leaves the drink tasting flat and metallic compared to fresh.
4
Drop a lime wheel into the drink and rest a cinnamon stick across the rim or let it float inside. Serve it right away while it's still steaming.
!Leaving the drink sitting too long before drinking lets it cool down and the aromas fade.

Serve

Serve it hot in a mug or heatproof glass. The lime wheel and cinnamon stick add a nice smell when you bring the cup to your face.

Variations

Ingredient substitutions

Each row shows what you can swap in place of an original ingredient, and how the drink changes.

Swap options for Dark Rum

Dark RumNavy Strength Rum
Match
Specialty availability
Dark Rum → Navy Strength Rum: Packs a heavier alcoholic punch and stands up better to the water dilution with bolder flavor.
Dark RumGold Rum
Match
Common availability
Dark Rum → Gold Rum: Lighter and smoother with less molasses depth, making the drink feel a bit thinner.

Swap options for Fresh Lime Juice

Fresh Lime JuiceFresh Lemon Juice
Match
Common availability
Fresh Lime Juice → Fresh Lemon Juice: Sweeter and less sharp than lime, which softens the tart edge of the drink.

Swap options for Hot Water

Hot WaterCold Water
Match
Common availability
Hot Water → Cold Water: Turns it into a crisp, refreshing drink instead of a warming one, muting the rum aromatics.

Similar cocktails

Cousin drinks that share DNA with this one — each profile stands on its own.

Similar cocktail

Hot Toddy

A Hot Toddy uses whiskey or bourbon as the base spirit instead of rum.

Match

The Hot Toddy tastes rounder and sweeter from the honey, with toasted grain notes instead of rum's earthy molasses.

In common: hot, warming, built in mug, cold-weather drink

Ingredients

Both share

Hot Water, Fresh Lime Juice, Demerara Sugar

Only in Grog

Dark Rum, Angostura Bitters

Only in Hot Toddy

Whiskey, Honey, Clove

Swapping rum for whiskey and adding honey instead of sugar shifts the drink from molasses-driven warmth to a richer, grain-forward sweetness.

Flavor

Shared flavors

hot and dilute, citrus tartness, comforting warmth

How Hot Toddy differs

grainier, sweeter, less earthy

View recipe & details →

Similar cocktail

Daiquiri

A Daiquiri is shaken and served ice-cold without any water dilution.

Match

The Daiquiri hits with a sharp, icy sweetness and concentrated rum heat, while Grog is a muted, warm, and drawn-out experience.

In common: rum and lime base, spirit-forward, sour backbone

Ingredients

Both share

Dark Rum, Fresh Lime Juice

Only in Grog

Hot Water, Angostura Bitters

Only in Daiquiri

Simple Syrup

The Daiquiri uses syrup for sweetness and skips the water entirely, concentrating the rum and lime into a small, chilled serving.

Flavor

Shared flavors

rum backbone, bright lime acidity

How Daiquiri differs

colder, sweeter, sharper

View recipe & details →

Similar cocktail

Ti Punch

Ti Punch uses rhum agricole and skips the water dilution entirely.

Match

Ti Punch hits harder with a vegetal, grassy rum burn, while Grog spreads that rum flavor out over a larger, warmer, and more gentle volume.

In common: rum and lime base, minimal ingredients, built drink

Ingredients

Both share

Dark Rum, Fresh Lime Juice, Demerara Sugar

Only in Grog

Hot Water, Angostura Bitters

Ti Punch is essentially the undiluted, cold version of Grog using a grassier style of rum.

Flavor

Shared flavors

rum-forward, tart lime, raw sugar sweetness

How Ti Punch differs

grassier, stronger, room temperature

View recipe & details →

History

Origin

In 1740, British Vice Admiral Edward Vernon ordered that sailors' daily rum ration be diluted with water to curb drunkenness. The mix was named after Vernon's grogram cloak, earning him the nickname 'Old Grog'. Later additions of lime juice helped fight scurvy among the fleet.

Creator: Vice Admiral Edward Vernon
Era: 1740s
Confidence

The original 1740 grog was just rum and water; lime and sugar were added later by sailors, so recipes vary widely on those additions.

Practical

Tips & pitfalls

What works at home and what to skip when making this drink.

Tips

Worth knowing before you pour

Use a good pot-still rum; the water will expose any harshness.
Taste as you add water; you can always add more but can't take it out.
A cinnamon stick doubles as a stirrer and a garnish.

Avoid

Common mistakes

Don't use boiling water or it will burn off the rum aromatics.
Skip the bottled lime juice; it makes the drink taste metallic.
Don't overdilute; keep the water to a 2-to-1 ratio with the rum.