Fresh Ingredients

Fresh Grapefruit Juice

Fresh grapefruit juice is sour and bitter at once: about 2% acid, a third of lemon's, with a bitter edge no other common citrus juice carries. It lengthens the Greyhound and the Salty Dog and shares the sour with lime in the Hemingway Daiquiri. Squeeze it the same day, and if you take prescription medicine, check the leaflet first: grapefruit stops some medicines working properly.

Quick Facts

ABV0% ABV

Legal categoryNon-alcoholic

OriginCaribbean (historically)

Flavour Strengthmedium bold

SeasonWinter / Spring (available year-round)

Our keeping timeJuiced: the same day. Whole: one to two weeks refrigerated.

Storage

Store whole grapefruit refrigerated. Once juiced, keep it covered and refrigerated and use it the same day.

Allergens

None of the 14 listed allergens.

The ingredient

About Fresh Grapefruit Juice

Flavour Profile

Primary Flavours

CitrusGentle bitternessFresh aciditySubtle sweetness

Tasting Notes

Bright citrus flavour with soft acidity and characteristic grapefruit bitterness. Less sharp than lemon or lime.

Grapefruit is sour, bitter and made for long drinks

Grapefruit juice carries about 2% acid: more than orange, about a third of lemon or lime. Its other quality is bitterness, which no other common citrus juice brings and which lets it take sugar without tasting sweet.

That combination suits long drinks. In the Greyhound and the Salty Dog, 120ml of it meets 50ml of vodka and nothing else. In the Brown Derby and the Blinker, 30ml gives bourbon or rye a bitter fruit to work against.

White is drier, pink and red are softer

Grapefruit comes with white, pink and red flesh of varying sweetness. White is usually the sharper and more bitter; pink and red are softer. Our recipes accept either unless they say otherwise, and the Navy Grog asks for white. Grapefruit soda borrows the name and is a different ingredient.

Grapefruit juice by colour, and the soda that borrows its name

Taste

White grapefruit juice: Sharper and more bitter
Pink or red grapefruit juice: Softer and a little sweeter
Grapefruit soda: Sweet and fizzy, mildly bitter

Sugar added

White grapefruit juice: None
Pink or red grapefruit juice: None
Grapefruit soda: Yes

Keeps

White grapefruit juice: The same day once squeezed, by our rule
Pink or red grapefruit juice: The same day once squeezed, by our rule
Grapefruit soda: As the label says once opened

Typical use

White grapefruit juice: Navy Grog, a dry Greyhound
Pink or red grapefruit juice: Old Friend, a rounder Salty Dog
Grapefruit soda: Topping long drinks

	White grapefruit juice	Pink or red grapefruit juice	Grapefruit soda
Taste	Sharper and more bitter	Softer and a little sweeter	Sweet and fizzy, mildly bitter
Sugar added	None	None	Yes
Keeps	The same day once squeezed, by our rule	The same day once squeezed, by our rule	As the label says once opened
Typical use	Navy Grog, a dry Greyhound	Old Friend, a rounder Salty Dog	Topping long drinks

Grapefruit and some medicines do not mix

Grapefruit can stop some medicines working as they should. The NHS tells anyone taking simvastatin, a common statin, to avoid grapefruit juice, and similar warnings appear on other medicines. The juice in a cocktail counts. If you take prescription medicine, read the patient leaflet or ask a pharmacist before you pour.

One grapefruit can fill a Greyhound

A grapefruit gives far more juice than a lemon, often 150ml or more, so a Greyhound may need only one. Press gently: the pith is thick, and grinding into it adds bitterness. Strain out the heavier pulp but leave the juice some body, and press only what the day needs.

Using it

Using Fresh Grapefruit Juice

Usage

From 15ml in the Jet Pilot to 120ml in the Greyhound and the Salty Dog; 40ml in the Hemingway Daiquiri, beside 15ml of lime. Long measures give length and bitterness, short ones a bitter edge next to lime or lemon.

Pro Tip

For a Hemingway Daiquiri, squeeze the grapefruit and the lime in the same session, within three hours of serving. The lime sets the clock for the whole drink.

Top Tips

Taste each batch before you sweeten; grapefruit varies a good deal from fruit to fruit.
White grapefruit makes a drier, sharper drink; pink or red a softer one.
Press gently. Grinding into the thick pith adds bitterness the drink did not ask for.
Squeeze it the same day; it dulls overnight like any fresh juice.

Possible Substitutions

Fresh Orange Juice: with a dash of bitters
Grapefruit Soda: pink grapefruit soda: less fresh

Production Method

Grapefruit is washed, cut, and squeezed using a citrus press. Juice is strained to remove excess pulp and pith fragments (which can add bitterness). Store cold in a sealed container to slow oxidation.

History & Context

Grapefruit is a young fruit. It arose in Barbados in the eighteenth century from an accidental cross between the sweet orange and the pomelo.

Go further

More to explore

Common Questions

What does grapefruit juice taste like?

Sour and bitter together, with a sweet edge in pink and red fruit. The sourness is milder than lemon's, at about 2% acid against 6%, and the bitterness lingers after you swallow. White grapefruit tastes drier and more bitter; pink and red taste softer and closer to orange.

Pink or white grapefruit for cocktails?

Either works in most of our recipes. White gives a drier, sharper drink and suits the Navy Grog and a dry Greyhound; pink and red give a rounder one, which suits the Old Friend. Taste the juice first, because two grapefruit can differ more than two lemons.

Can I drink grapefruit juice if I take medication?

Check first. Grapefruit affects how some medicines work, and the NHS tells people taking simvastatin, a common statin, to avoid grapefruit juice. Other medicines carry similar warnings. The patient leaflet will say, or a pharmacist can tell you, and the measure in a cocktail is enough to count.

How long does fresh grapefruit juice keep?

Drink it on the day it is pressed, chilled and covered. Overnight, in our experience, it loses its smell and goes flat, as other fresh juices do. For a Hemingway Daiquiri, squeeze it with the lime, within three hours of serving, because the lime sets the limit for that drink.

What spirits go with grapefruit juice?

Among our recipes: vodka in the Greyhound and the Salty Dog, rum in the Hemingway Daiquiri and the Navy Grog, bourbon in the Brown Derby, rye in the Blinker, gin in the Old Friend and tequila in the Cantaritos. Its bitterness also sits comfortably beside Campari, as the Old Friend shows.

What is the difference between a Greyhound and a Salty Dog?

The salt. The two drinks share the same vodka and the same long pour of grapefruit; the Salty Dog adds a half rim of flaky sea salt, which lets the drinker choose between a salted sip and a plain one. In both, the grapefruit is the bulk of the drink, so press it that day.

Is bottled grapefruit juice all right?

It will make a drink, but a flatter one. Heat treatment for the shelf takes away much of the smell, and in a Greyhound at 120ml there is nothing else to carry it. In the Brown Derby, bottled juice also loses most of the bitterness that separates that drink from a plain bourbon sour.

Make something

Made with Fresh Grapefruit Juice

Featured In These Cocktails

Hemingway Daiquiri Salty Dog Greyhound Navy Grog Cantaritos Brown Derby

Show all 11 cocktails

Blinker Daiquiri Jet Pilot Old Friend Seabreeze

Often Used With

Updated 18 October 2026

Back to Ingredients Guide