Solubility and heatRunning
Separation strip. Temperature rise at 82.8 °C. Sugar dissolved 289.8 g, Sugar required 154 g. Currently sugar dissolved is over by 135.8 g.TUNING289.8 gSUGAR REQUIREDSUGAR DISSOLVED82.8 °C
t = 0.0s

Sugar dissolved

289.8g

Sugar required

154g

82.8 °C

Separation strip. Temperature rise at 82.8 °C. Sugar dissolved 289.8 g, Sugar required 154 g. Currently sugar dissolved is over by 135.8 g.

What has to balancesTs \propto T

What is happening

You arrive at a jam kitchen dissolving sugar into fruit pulp.

The pan is nowhere near hot enough. The recipe needs 154 g in solution, and the pulp dissolves 3.5 g of sugar for every degree above room temperature.