When it goes wrong · Simmer
The rice burnt and stuck to the bottom of the pot.
Can you save it?
Reviewed for this symptom
Take the pot off the heat and lift the unburnt rice out from the top without scraping the base; a burnt smell that has not reached the top layers stays behind. If the bottom is golden rather than black, it is the prized crust — serve it.
How to confirm the diagnosis
Observable cues, not inferred user state
- A black layer welded to the base
- The heat stayed high after the water was gone
- A thin pot
Not this?
- Stock is cloudy and greasy.
- Fish or dumplings fell apart.
- A cream or egg sauce split.
- A cornstarch-thickened sauce stayed thin and tasted chalky.
- Rice came out gummy and mushy.
- Rice is still crunchy in the middle.
What actually happened
Only this symptom
The heat stayed high after the water was gone. Steam holds the pot at 100°C only while there is water left to boil; the moment it is absorbed, the bottom layer climbs toward scorching. A heavy pot, the lowest heat, and ten minutes of rest off the heat are the protection — and a toasted, not burnt, bottom layer is a prized dish in many rice kitchens.
The full mechanism
Shared by every simmer failure
Water boils at 100°C and cannot get hotter at normal pressure, so a rolling boil is not hotter than a simmer by more than a few degrees — around 85-96°C against 100°C. The difference is not temperature but agitation. A boil is thousands of collapsing bubbles delivering mechanical energy, which shreds fish, clouds a stock by emulsifying fat and driving protein scum back into suspension, and breaks the emulsions in cream sauces. A simmer delivers the same heat without the turbulence. This is why almost everything long-cooked wants a simmer: the extra few degrees buy almost nothing and the agitation costs a great deal. The exceptions are when you specifically want that energy — reducing fast, or gelatinising starch in a slurry, which genuinely needs to reach a boil to thicken fully.
The full Simmer lesson — how to tell, where to practise it, what it carries to.
Next time
Prevent this specific failure
A heavy pot, the lowest heat once it is covered, and ten minutes off the heat with the lid on at the end.
What right looks like
Shared by every simmer failure
- Bubbles rise lazily from one or two points on the base and break gently at the surface — not a rolling motion across the whole pan.
- The surface trembles more than it moves.
- A stock stays clear. Cloudiness is the reliable sign it has been boiling, not simmering.
- Adjusting to a true low simmer usually means a lower flame than feels right, and often a lid set slightly ajar.