The burning problem
Why things burn — and the science of prevention
Burning in cooking is not Maillard browning taken too far — it is a completely different chemical process called pyrolysis. Where Maillard browning (140–180°C) produces complex, pleasant aromatic compounds, pyrolysis (above 200°C) breaks complex molecules into simpler, acrid, bitter compounds. The line between perfectly browned and burnt is narrow, and understanding the chemistry makes it preventable.
The Science
What is the chemical difference between browning and burning?
Maillard browning (140–180°C) produces large, complex aromatic molecules — pyrazines, furans, and melanoidins with pleasant, complex flavour. Pyrolysis (above 200°C) breaks these large molecules into smaller fragments — acrolein, formaldehyde, and acetic acid — with acrid, bitter, harsh flavour. The pleasant aroma of toasting cumin is Maillard; the harsh, acrid smell of burnt cumin is pyrolysis. The transition can happen within 10–20 seconds at high heat.
30 second read
Most Burn-Prone Moments in Indian Cooking
Where burning happens and how to prevent it
- Tadka spices: window between bloomed and burnt is 10–30 seconds. Mise-en-place everything before heating oil. Have the dish ready immediately.
- Garlic in oil: burns in 30–45 seconds at 180°C. Add after other spices have bloomed. Reduce heat before adding.
- Ground spices added to dry pan: no moisture barrier — contact hot metal and pyrolyse within seconds. Always add to onion or tomato mixture.
- Milk and sugar together: stir continuously. The combination scorches rapidly.
- Dal in pressure cooker without water: always maintain correct water level — high protein content scorches extremely rapidly.