Simple vs rich syrup: which to use and why

Simple syrup (1:1)

Simple syrup is made with equal parts sugar and water by weight (or volume — they are close enough). At the 1:1 ratio, the syrup is thin, pourable, and easy to measure. It integrates seamlessly into shaken drinks and does not add noticeable texture.

• Best for: Margaritas, Daiquiris, Mojitos, anything where a light touch of sweetness is needed
• Shelf life: 1-2 weeks refrigerated
• Flavor: neutral, sweet, slightly watery

Rich syrup (2:1)

Rich syrup uses twice as much sugar as water by weight. The result is a thick, viscous syrup with a richer sweetness and more body. You use less of it — a 0.5 oz pour of rich syrup replaces roughly 0.75 oz of simple syrup for equivalent sweetness.

• Best for: Old Fashioneds, sours where you want texture, any drink where you want to add sweetness without adding water volume
• Shelf life: 3-4 weeks refrigerated
• Flavor: rounder, thicker, slightly more caramel-adjacent

How to make either one

Combine sugar and water in a saucepan over low-medium heat and stir until fully dissolved. Do not boil — it is not necessary and can caramelize the sugar. Cool completely before using or storing. Use the syrup ratio calculator to get exact sugar and water amounts for any yield.

Which to choose

For most home batching, simple (1:1) is the right default. It is neutral, easy to make, and works with almost everything. Switch to rich (2:1) when you want to add sweetness to a spirit-forward stirred drink without adding extra liquid, or when you want a richer texture in a sour.