Sugar Syrup Stage Calculator
Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer
Last updated: July 27, 2026Why a thermometer beats guessing for candy-making
As sugar syrup boils, water evaporates and sugar concentration rises in a predictable, well-documented relationship with boiling temperature - this is exactly why a candy thermometer produces far more consistent results than timing alone.
Worked example
For a syrup temperature of 240F:
Result = Soft-ball stage
| Stage | Temperature Range | Common Use |
|---|---|---|
| Thread | 215-235F | Syrups |
| Soft-ball | 235-245F | Fudge, fondant |
| Hard-ball | 250-265F | Nougat, marshmallows |
| Hard-crack | 300-310F | Toffee, brittle |
| Caramel | 320-350F | Caramel sauce |