2 to 1 'rich' sugar syrup versus 1 to 1 'simple' syrup

Words by Simon Difford

2 to 1 'rich' sugar syrup versus 1 to 1 'simple' syrup image 1

The balance between sweet and sour is crucial to the majority of cocktails and consistently producing balanced cocktails is made easier when using sugar syrup with a known and constant sweetness.

Sugar syrups tend to be made according to two recipes:

One part sugar to one part water (1:1)

1:1 syrup can be made by simply shaking sugar and room temperature water together in a sealed container so is appropriately known as 'simple syrup'.

1:1 is the most common type of syrup used in American bars (but even in America there is a growing trend towards the use of 2:1 syrup). The appeal of 1:1 syrup is that no heat is needed to dissolve the sugar in the water and 1oz (30ml) of "simple syrup" roughly balances the acidity of 1oz (30ml) citrus juice so making balanced cocktail recipes easy.

Two parts sugar to one part water (2:1)

Known as "rich sugar syrup", 2:1 is the most usual syrup found outside America and is the style of sugar syrup used in Difford's Guide recipes.

When measured by volume rather than mass [see below], 2:1 sugar syrup is also around the same degree of sweetness found in most commercially produced bottled sugar syrups. It is common for European bars to buy in syrup rather than make their own to help ensure consistency and syrups are widely stocked in supermarkets. The willingness to buy rather than make syrups is also driven by the fact that making 2:1 syrup involves the faff of gently heating and stirring the water and sugar to ensure all the sugar dissolves.

20ml (2/3oz) of "rich syrup" roughly balances the acidity of 30ml (1oz) citrus juice.

2:1 'rich' syrup versus 1:1 'simple' syrup

2:1 syrup is superior to 1:1 syrup as the use of 1:1 sugar syrup adds additional, perhaps unwanted, dilution to a drink compared to 2:1 syrup, typically around 5 to 8% depending on the recipe. It's a small percentage but worth eliminating. If desirable in a particular cocktail, dilution can be controllably increased by the addition of a measured amount of chilled water. If you worry about over-dilution from "wet" melting ice then you should also care about the amount of water in your sugar syrup.

Converting cocktail recipes using 2:1 rich syrup to equivalent 1:1 simple syrup

Confusingly, if a cocktail recipe specifies 10ml of 2:1 sugar syrup the equivalent is NOT 20ml of 1:1 as would seem logical.

2:1 sugar syrup is 1.33 times sweeter than 1:1 syrup (not twice as sweet) so if using 1:1 syrup you need a third more sugar than stipulated for 2:1 syrup in a recipe.

5ml (1 barspoon) 2:1 syrup = 7.5ml (¼oz) 1:1 syrup
10ml (1/3oz) 2:1 syrup = 15ml (½oz) 1:1 syrup
15ml (½oz) 2:1 syrup = 22.5ml (¾oz) 1:1 syrup
20ml (2/3oz) 2:1 syrup = 30ml (1oz) 1:1 syrup

Measuring by volume rather than mass

When making sugar syrup some people measure by weight (e.g. 2kg of sugar to 1kg of water) and other people measure by volume (e.g. 2 cups sugar to 1 cup water). Whether following a 1:1 or 2:1 ratio, measuring by weight results in a sweeter syrup than that made by measuring by volume.

For ease and to produce a 65°brix syrup I measure by volume – 2 cups of sugar to 1 cup of water.

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