Mastering Sugar Stages
Temperature is a guide, but sight and touch are the final arbiters. Once you understand how syrup behaves in cold water, you can make everything from soft fudge to spun sugar without needing a thermometer.
Watch the bubbles, not the clock.
Keep a bowl of ice-cold water next to your stove at all times. Use a light-colored saucepan so you can accurately judge the color of the sugar as it transitions toward caramelization.
- Heavy-bottomed saucepan
- Silicone spatula
- Small glass of ice water
- Candy thermometer (optional)
What goes in.
- 2 cupsGranulated white sugar
- 1/2 cupWater
Reading the Sugar
Drop a teaspoon of the hot syrup into the water. Remove it with your fingers and note the texture: if it forms a loose ball, it is soft; if it cracks when bent, it is hard.
The method.
Dissolve the sugar
Combine sugar and water in a saucepan over medium heat. Stir only until the grains disappear, then stop; agitation encourages crystallization.
Boil
Bring to a steady boil. The bubbles will start large and slow, then become smaller and faster as the water evaporates.
Test for stages
At 230°F (110°C), it is thread stage. At 240°F (115°C), soft-ball stage. Continue testing periodically until the syrup reaches your desired consistency for your specific application.
Other turns to take.
Soft Ball
Forms a soft, flexible blob in water; used for fudge and pralines.
Hard Ball
Forms a rigid, firm ball that holds its shape; used for nougat and marshmallows.
Hard Crack
Forms threads that snap brittlely; used for lollipops and sugar glass.
When it doesn't go to plan.
Never stir the syrup once it reaches a boil to prevent graininess.
Brush the sides of the pan with a wet pastry brush to wash down any stray sugar crystals.
Turn off the heat slightly before your target temperature, as the residual heat in the pan will continue to cook the sugar.
The ones that keep coming up.
Why did my sugar turn grainy?
Crystals likely formed on the side of the pot and fell back into the syrup, triggering a chain reaction. Always keep the sides of your pan clean.
Can I use a digital thermometer?
Yes, but be aware that they can be inaccurate. Always verify the stage using the cold water test regardless of the reading.