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SOUR MIX FOR COCKTAILS:
HOW TO MAKE SWEET AND SOUR MIX AT HOME

WRITTEN BY: SCOTT VAN DORT

Sour cocktails are one of the oldest and most popular cocktail families in the world and chances are you’ve already tried a few without knowing it.

Every sour follows the same fundamental formula: a base spirit, citrus and a sweetener. Gin, vodka or whiskey for the spirit; lemon or lime juice for the citrus; simple syrup, honey or agave for the sweetener.

Bitters and egg white – or aquafaba as a plant-based substitute – are optional but common, adding complexity and that signature silky, frothy texture.

The spirit changes. The formula doesn’t.

What is is the best sour mix?

Store-bought sour mix is typically a shelf-stable blend of corn syrup, citric acid and artificial flavoring and most professional bars avoid it for good reason. The citric acid base tastes flat and one-dimensional next to fresh juice, and no amount of shaking will change that.

As Ricardo ‘Rico’ Dynan, Bartender and Absolut Global Brand Ambassador, puts it: “With store-bought sour mixes, you’re basically getting emulsifiers and e-numbers, or a powder that you add water to create a sour mix. But the truth is, they taste horrible.”

Homemade sour mix uses just three ingredients – fresh lemon juice, fresh lime juice and simple syrup – and takes minutes to make. The trade-off is shelf life: a homemade mix keeps for 7-10 days in the fridge, while a store-bought bottle lasts considerably longer. For a party or batch cocktails, fresh wins every time. For a home bar with infrequent use, a higher-quality store-bought mix is a reasonable shortcut – just read the label and avoid anything with artificial flavoring.

The real advantage of making your own is control. Fresh ingredients let you adjust the citrus-to-sweetener ratio to the specific cocktail – a Whiskey Sour wants a little more lemon; a Margarita leans on lime. Store-bought mix doesn’t give you that.

That said, sour mix has its place. As Rico explains: “There was a bar in London that started to create drinks that didn’t require ice – they pre-batched everything and started experimenting with citric acids and malic acids. Over time, other bars began to copy this and started making their own sour mix.”

The innovation extends further – one award-winning bar in Stockholm substitutes sour green apples for the lemon and lime base, driven by climate. “They only use Swedish ingredients, so they built the mix around what the country actually produces,” Rico explains.

The key to a great sour mix is making it yourself, using fresh quality ingredients.

How to make Sour Mix

“If you really dive deep into bartender law, shall we say, you can find really good recipes for a homemade sour mix,” says Rico. 

For a basic sour mix, start by making simple syrup and then juicing lemons, limes, and maybe even oranges using a citrus elbow or citrus press. 

Begin with a ratio of two parts lime juice to one-part Simple Syrup. Gradually mix the Juice into the sugar Ssrup until you find a balance you like. Then, use a blender to blend the mixture to really emulsify the lime Juice and simple syrup. Unsure what a cocktail part is? Check out this article where we explain how to use parts to make cocktails.

“Taste as you go and tweak the ratio to suit your taste preference. Start with a one-to-one ratio so you have a baseline. If it’s too sweet, add more citrus juice. If it’s too sour, add more simple syrup,” recommends Rico.

“Oh! And don’t be afraid to experiment and adjust the mix to your liking. When it’s just two ingredients, it’s like a seesaw – finding the right balance is key. And the right balance is when you think it’s delicious,” he adds.

Tweak the ratio one tablespoon at a time – start at 2:1 citrus to syrup. If the mix puckers your cheeks, add a little more syrup. If your front teeth feel coated, add a little more citrus. The sweet spot is the point where neither flavor dominates.

Homemade sour mix keeps for 7-10 days in the fridge in a sealed glass bottle. After that, the fresh citrus oils start to oxidize and the mix takes on a dull, slightly bitter edge. For longer storage, freeze it in ice cube trays – each cube is roughly 1oz, enough for a single cocktail.

What is a Sour Cocktail? (And Which Ones Use Sour Mix)

“You’ve got the Whiskey Sour, you’ve got the Amaretto Sour, and you’ve got the Vodka Sour, but then you’ve also got the Margarita, the Daiquiri, the Cosmopolitan, and the Mojito – these are all sours,” explains Rico. “There are many sours out there that don’t have the term sour in their name, but they’re definitely Sours.”

The Whiskey Sour is one of the oldest known sour cocktails, with its first printed mention dating back to 1870. Over time, Sours have seen numerous interpretations, with some achieving contemporary classic status. Examples include the Pisco SourAmaretto SourVodka SourBoston Sour, New York SourSouth SideMargaritaSidecarDaiquiriWhite LadyLemon Drop Martini, and Gimlet.

Don’t miss our Sour Cocktail Collection where we highlight 10 sours every home bartender needs to know how to make.

 

Sour Mix FAQ

SOUR MIX COCKTAILS

Here are some of our favorite easy cocktails to make with sour mix.

Go to Gimlet
Elegant lime-colored Gimlet cocktail made with Gin, Lime Cordial and garnished with a Lime Spiral.

Gimlet

Gin, Lime Cordial, Lime

4.0
(585)
Easy
Spirit-forward & Citrusy
Go to Margarita
Traditional Margarita served in a Margarita Glass with a salted rim and garnished with a Lime Wheel.

Margarita

Tequila Blanco, Lime Juice, Triple Sec, Salt

4.0
(1.1K)
Average
Sour & Citrusy
Go to Vodka Sour
Vodka Sour in iced rocks glasses with lemon wedges and cherries and an Absolut Vodka bottle behind on a table

Vodka Sour

Absolut Vodka, Lemon Juice, Simple Syrup, Egg White, Bitters, Cherry, Lemon

3.7
(98)
Average
Sour & Frothy
Go to Daiquiri
Daiquiri in two coupe glasses with ice and lime wheels

Daiquiri

Light Rum, Lime Juice, Simple Syrup, Lime

4.0
(986)
Easy
Sour & Citrusy
Go to Whiskey Sour
Whiskey Sour in a coupe glass with egg white foam and bitters droplets on a wooden board

Whiskey Sour

Bourbon, Lemon Juice, Simple Syrup, Egg White, Lemon, Cherry, Aromatic Bitters

4.9
(2.3K)
Average
Sour & Frothy
Go to Lemon Drop Martini
Classic Lemon Drop Martini cocktail beside a bottle of Absolut Citron lemon-flavored vodka, a Hawthorne strainer and a fresh lemons.

Lemon Drop Martini

Absolut Citron, Lemon Juice, Simple Syrup, Triple Sec, Lemon Zest

2.8
(1.0K)
Average
Citrusy & Sour