Simple syrup is sugar dissolved in water. Standard cocktail simple syrup uses a 1:1 ratio, such as 100 g sugar and 100 g water. Stir or shake until completely dissolved, transfer to a clean sealed container and keep refrigerated.
In this guide
Simple syrup is sugar dissolved in water. Bartenders use it because liquid sugar mixes quickly and evenly into cold cocktails, while granulated sugar can be difficult to dissolve once ice and alcohol are involved.
The standard version is incredibly simple:
- 100 g white sugar
- 100 g water
Combine them until the sugar is completely dissolved. That gives you a 1:1 simple syrup, which is the version many cocktail recipes assume unless they say otherwise.
Quick answer
To make simple syrup for cocktails, combine equal parts sugar and water.
For a small batch:
- 100 g white granulated sugar
- 100 g water
Stir or shake until completely dissolved, transfer to a clean sealed container and keep it refrigerated.
If a recipe calls for rich syrup, that normally means a stronger 2:1 mixture using two parts sugar to one part water.
Simple syrup recipe
Ingredients
- 100 g white granulated sugar
- 100 g water
Ratio: 1:1 by weight
Equipment
- Kitchen scales or measuring equipment
- Clean jar or small saucepan
- Spoon
- Clean sealable bottle or container
Method 1: no heat
- Add the sugar and water to a clean jar.
- Seal the jar.
- Shake thoroughly.
- Allow it to sit briefly, then shake again if necessary.
- Continue until no visible sugar crystals remain.
- Transfer to a clean container and refrigerate.
Using slightly warm water can make dissolving the sugar easier.
Method 2: gentle heat
- Add the sugar and water to a small saucepan.
- Warm gently while stirring.
- Remove from the heat once the sugar is fully dissolved.
- Allow the syrup to cool.
- Transfer it to a clean sealed container and refrigerate.
You do not need to boil simple syrup. Excessive heating can evaporate water and change the concentration you originally measured.
What is simple syrup?
Simple syrup is simply a pre-dissolved mixture of sugar and water.
Its usefulness in cocktails comes from consistency.
Instead of hoping granulated sugar dissolves inside a cold drink, you add sweetness that is already dissolved and easy to measure.
That gives you:
- even sweetness throughout the cocktail
- repeatable measurements
- easier balancing
- no undissolved sugar sitting at the bottom of the glass
This becomes especially useful when you start adjusting recipes. If a drink is too sweet, reducing 5 ml of syrup is much easier to reproduce than trying to remember how much of a spoonful of sugar you used.
What is the standard simple syrup ratio?
The standard ratio is 1:1 sugar to water.
By weight
Using equal weights is the most precise approach.
For example:
- 100 g sugar
- 100 g water
By volume
You can also use equal volumes, such as one cup of sugar and one cup of water.
The result will not be identical to a true 1:1 syrup by weight because sugar and water have different densities, but it is perfectly workable for home cocktail making.
The most important thing is consistency. Choose one method and use it repeatedly.
What is rich simple syrup?
Rich syrup usually means a 2:1 ratio:
- 200 g sugar
- 100 g water
It is more concentrated, thicker and sweeter than standard 1:1 syrup.
Because it contains more sugar relative to water, you normally use less of it in a cocktail.
This makes rich syrup particularly useful in drinks where you want sweetness and body without adding as much additional water.
1:1 vs 2:1 simple syrup
| Characteristic | 1:1 Simple Syrup | 2:1 Rich Syrup |
|---|---|---|
| Sugar-to-water ratio | 1:1 | 2:1 |
| Sweetness | Standard | More concentrated |
| Texture | Relatively light | Thicker |
| Amount used | Larger measure | Smaller measure |
| Good starting use | General cocktail recipes | Spirit-forward drinks and recipes specifically calling for rich syrup |
If a recipe calls for 1:1 syrup and you substitute rich syrup, start with roughly half as much and adjust from there.
How much simple syrup should you use in a cocktail?
There is no universal amount.
The correct quantity depends on:
- how acidic the drink is
- whether other ingredients already contain sugar
- the concentration of your syrup
- the spirit being used
- your own preference
For example, an Old Fashioned may only need a small amount of syrup because there is no citrus to balance.
A sour-style cocktail containing lemon or lime usually needs more sweetness because sugar is balancing acidity as well as alcohol.
A Margarita may need little or no additional syrup if the orange liqueur is already providing enough sweetness.
The safest approach is to start conservatively, taste the finished cocktail and adjust.
Why simple syrup matters for cocktail balance
Simple syrup does more than make a cocktail taste sweet.
Sweetness is one of the major components of cocktail balance.
It can soften:
- acidity from lemon or lime
- bitterness
- the perception of alcohol
It also contributes some body to the finished drink.
This is why removing sugar completely from a sour does not simply make it “less sweet.” It changes the entire balance of the cocktail.
A useful beginner question is not just:
“Is this drink sweet?”
Instead ask:
“Is the sweetness balancing everything else?”
Can you make simple syrup without heating it?
Yes.
A 1:1 syrup can be made simply by combining sugar and water in a sealed jar and shaking until dissolved.
Warm water can speed up the process.
The no-heat approach is particularly useful for small home batches because:
- you do not need a saucepan
- there is no cooling period
- you avoid accidentally reducing the water through boiling
Gentle heat becomes more useful when making larger quantities or some flavoured syrups.
Does simple syrup need to be refrigerated?
For homemade simple syrup, refrigeration is the sensible default.
Store it in a clean, sealed container and avoid introducing used utensils or other ingredients into the bottle.
Commercial cocktail syrups may have different storage instructions because their processing, packaging and formulation can differ from homemade syrup.
Follow the manufacturer's instructions for purchased products.
How long does simple syrup last?
There is no single reliable shelf-life figure for every homemade batch.
How long it remains usable depends on factors such as:
- the sugar concentration
- how clean the equipment and bottle were
- refrigeration
- how frequently the container is opened
- whether fresh ingredients were added
Instead of relying entirely on a calendar, make relatively small batches, label them with the preparation date and check them before use.
A richer syrup generally tends to keep better than a more diluted syrup, but that should not be treated as a guarantee.
Can simple syrup go bad?
Yes.
Discard homemade syrup if you notice signs such as:
- visible mould
- unexpected cloudiness
- an unusual sour or fermented smell
- unexpected bubbling or pressure
- a substantial unexplained change in texture
If something looks or smells wrong, replace it rather than tasting it to investigate.
Simple syrup is inexpensive and quick to make.
Should you use white sugar?
White granulated sugar is the standard choice because it provides relatively neutral sweetness.
That makes it the most versatile syrup to keep in a beginner home bar.
Other sugars are not necessarily better. They simply add different flavours.
Other cocktail syrups worth knowing
Demerara syrup
Demerara sugar contributes richer caramel and molasses-like notes that work particularly well with aged spirits.
It is often used in Old Fashioneds, rum drinks and tiki-style cocktails.
Brown sugar syrup
Brown sugar creates a darker and more pronounced molasses character.
It can work beautifully with whiskey and rum but may overpower delicate cocktails.
Honey syrup
Honey can be difficult to mix directly into a cold cocktail, so bartenders often dilute it with warm water first.
Unlike plain simple syrup, honey contributes a significant flavour of its own.
Agave syrup
Agave is commonly paired with tequila and mezcal.
Because different products vary in sweetness and thickness, add it conservatively and adjust according to taste.
How to make flavoured simple syrup
You can use the same basic concept to create flavoured syrups.
Ingredients such as:
- ginger
- vanilla
- cinnamon
- mint
- basil
can be infused into syrup to add another flavour dimension to cocktails.
Hardier ingredients can usually tolerate longer or warmer infusions, while delicate herbs should generally be treated more gently to avoid extracting unwanted bitterness.
Fresh ingredients can also change storage life, so flavoured syrups are best made in smaller batches.
Can you use sugar instead of simple syrup?
Sometimes.
Granulated sugar works best in drinks where you deliberately dissolve it before adding substantial ice.
The traditional sugar-cube method for an Old Fashioned is one example.
For shaken drinks, simple syrup is usually easier because the sweetener is already dissolved before it reaches the shaker.
If you want to compare the two methods directly, our guide on how to make an Old Fashioned explains why simple syrup is easier for beginners.
What can you substitute for simple syrup?
Possible alternatives include:
- Rich syrup: use less because it is more concentrated.
- Honey syrup: adds floral honey flavour.
- Agave syrup: works particularly well with agave spirits.
- Maple syrup: adds a distinctive flavour that suits some whiskey and rum drinks.
- Granulated sugar: useful in recipes where it can be properly dissolved.
Remember that most substitutes change flavour as well as sweetness.
Common simple syrup mistakes
Using too much
Start conservatively and adjust.
Ignoring other sweet ingredients
Coffee liqueurs, orange liqueurs, vermouths and many other cocktail ingredients can already contribute significant sweetness.
Using rich syrup as though it were standard syrup
A 2:1 syrup is considerably more concentrated than a 1:1 syrup.
If the recipe was developed around standard syrup, reduce the quantity when substituting rich syrup.
Not dissolving the sugar completely
If sugar crystals remain in the bottle, the syrup will not have the consistent concentration you intended.
Boiling unnecessarily
You only need enough warmth to dissolve the sugar.
Making far more than you need
Simple syrup is cheap and easy to make, so smaller fresh batches are usually more practical for a home bar.
How much simple syrup should you make?
A small batch using 100 g sugar and 100 g water is enough for many home cocktail sessions without creating a huge bottle you need to keep for months.
If you are hosting, simply scale the recipe proportionally.
Label your container with:
- the date
- whether it is 1:1 or 2:1
This becomes especially useful once you start keeping multiple syrups in the fridge.
Learn sweetness and you learn balance
Simple syrup is one of the easiest cocktail ingredients to make, but understanding what it does teaches an important bartending skill.
Once you can recognise how sweetness interacts with acidity, bitterness, alcohol and dilution, you can start adjusting cocktails instead of blindly following measurements.
Cocktail Playbook's beginner cocktail course teaches those fundamentals through classic cocktails so you can understand why a drink works and make better adjustments at home.
Frequently asked questions
What is simple syrup made from?
Simple syrup is made from sugar and water. Standard simple syrup normally uses equal parts sugar and water.
What is the ratio for simple syrup?
A standard syrup is 1:1 sugar to water. Rich syrup is commonly 2:1 sugar to water.
Do you have to boil simple syrup?
No. Sugar can be dissolved in water without boiling. Gentle heat simply speeds up the process.
Does homemade simple syrup need to be refrigerated?
Refrigeration is the sensible default for homemade syrup. Keep it in a clean, sealed container.
Can simple syrup go bad?
Yes. Discard it if you notice mould, unexpected cloudiness, unusual smells, fermentation or other clear signs of spoilage.
Can I use sugar instead of simple syrup?
Yes in some drinks, particularly when the sugar can be deliberately dissolved before chilling. Simple syrup is generally easier to use in shaken cocktails.
Can I use honey instead of simple syrup?
Yes, but honey contributes its own flavour and is usually easier to use when diluted into a honey syrup first.
How much simple syrup should I put in a cocktail?
There is no universal amount. It depends on the cocktail's acidity, other sweet ingredients, syrup concentration and your preferred balance.
