The classic Daiquiri is a shaken rum sour, not automatically a strawberry slush. With only three ingredients, small measured changes matter.
Ingredients
- 60 ml (2 oz) white rum
- 20 ml (2/3 oz) fresh lime juice
- 15 ml (1/2 oz) 1:1 simple syrup
- A full shaker of firm ice
- Optional thin lime wheel
Tools
- Cocktail shaker or a safe, tightly sealed jar
- Jigger or small measuring cup
- Strainer
- Chilled coupe or small cocktail glass
Method
- Chill the serving glass. Ice water works if freezer space is limited.
- Add rum, fresh lime juice, and simple syrup to the shaker.
- Fill the shaker with firm ice and shake for about 10-12 seconds, until thoroughly cold.
- Strain into the chilled glass and serve without ice.
- Identify whether the drink is too sour, too sweet, or simply too warm before changing the next batch.
First identify the drink
A classic Daiquiri is white rum, fresh lime, and sugar shaken cold and strained into a chilled glass. It is not automatically pink, strawberry flavored, or blended with a mound of ice.
That distinction keeps the shopping list short. You need fresh lime, a way to measure small amounts, and enough firm ice to chill the drink—not fruit purée or a blender.
Treat 60:20:15 as a baseline
The IBA specification uses 60 ml white Cuban rum, 20 ml fresh lime juice, and two bar spoons superfine sugar. At home, 15 ml of 1:1 simple syrup is easier to repeat without leaving sugar crystals behind.
This is a baseline, not a universal ideal. Limes vary in acidity, and different rums change the balance. If your syrup is rich 2:1 syrup, start around 8-10 ml instead.
Temperature comes before more sugar
Fill the shaker with firm ice and shake until the outside is thoroughly cold. Strain immediately into a chilled glass.
If the first sip feels hot and harsh, check temperature and dilution before covering the problem with sweetness. Too little ice, a warm glass, or a very short shake can make a balanced spec feel rough.
Change one variable at a time
If the drink is sharply sour, add 5 ml more 1:1 syrup in the next batch. If it is sticky-sweet, remove 5 ml and confirm that you did not use rich syrup.
Avoid adding sugar, then lime, then more ice to the same finished drink. The serving gets larger and warmer while the cause becomes harder to identify. Note the symptom and change one number in the next Daiquiri.
Who should make it
This drink suits people who enjoy bright sours, measured recipes, and a clear rum character. If you want a sweet fruit slush, a long low-alcohol drink, or very little lime acidity, a different recipe will fit better.
This article is research-based and does not claim a BloomSipSip test batch. Alcohol is for adults of legal drinking age only. Drink responsibly and never drive after drinking.
What goes wrong and how to fix it
- Too sour: the lime may be unusually sharp. Increase 1:1 syrup by 5 ml (1 tsp) next time.
- Too sweet: reduce syrup by 5 ml and check whether you used rich 2:1 syrup.
- Harsh and hot: chill the glass, use enough firm ice, and shake to proper temperature before adding more sugar.
- Thin and watery: avoid wet crushed ice, stop shaking once cold, and serve immediately.
- Sugar crystals remain: dissolve superfine sugar in lime before adding ice, or use 1:1 simple syrup.
Substitutions
- No simple syrup: use two bar spoons superfine sugar and dissolve it in the lime juice before shaking, following the IBA direction.
- Using rich 2:1 syrup: start with 8-10 ml (about 2 tsp).
- No lime: lemon makes a rum sour, but it does not fully reproduce a classic Daiquiri.
- No shaker: use a sturdy, leakproof jar and open it away from your face.
- Want zero proof: build a separate tea- or cane-based sour; removing the rum does not leave a classic Daiquiri.
Cost, time, and difficulty
Roughly US$2-6 per serving, mostly depending on the rum.
FAQ
What is the classic Daiquiri ratio?
The current IBA specification uses 60 ml white Cuban rum, 20 ml fresh lime juice, and two bar spoons superfine sugar. A practical home baseline is 60:20:15 with 1:1 simple syrup.
Is a Daiquiri always frozen and strawberry flavored?
No. The classic is a clear shaken rum sour served up. Frozen and strawberry Daiquiris are later variations.
Why is my Daiquiri too sour?
Fresh lime acidity varies. Check the syrup concentration, then increase 1:1 syrup by 5 ml in the next drink instead of changing several variables.
Can I serve a Daiquiri over ice?
The classic is served up. A large-rock version is workable at home, but it will continue to dilute and should be treated as a variation.
Is a Daiquiri low in alcohol?
No. It contains a full 60 ml pour of rum. Cold temperature and acidity can soften the alcohol impression without lowering the dose.