Steeping aromatics in a liquid or fat so their flavour compounds move into it, then removing the solids.
Technique at a glance
A compact visual model of the lesson. Use the full mechanism and success criteria below when you practice.
Concept
Steeping aromatics in a liquid or fat so their flavour compounds move into it, then removing the solids.
What changes
Which liquid you infuse into decides what you extract, because flavour compounds divide into water-soluble and fat-soluble and the two do not swap.
What good looks like
Colour transfers visibly, and usually before the flavour has finished moving.
Practice counts when you cook
Reading this brief does not change your School state. Finish a real practice dish in Cook mode and log the cook; that cook is the evidence that advances the skill.
What to focus on
Mechanism
Which liquid you infuse into decides what you extract, because flavour compounds divide into water-soluble and fat-soluble and the two do not swap. Water pulls out acids, sugars and some volatile aromatics; fat pulls out the terpenes and capsaicinoids that water leaves behind, which is why chilli heat blooms in oil and not in stock, and why milk infused with vanilla tastes of something water never gets. Heat speeds diffusion but also drives volatiles off, so there is a real tension: a hot infusion is faster and loses top notes, a cold one is slow and keeps them. That is the whole difference between hot and cold brew coffee. Time matters in the other direction too — tannins and bitter compounds extract more slowly than aromatics, so over-steeping does not add more of what you want, it adds what you do not.
Success criteria
Colour transfers visibly, and usually before the flavour has finished moving.
The liquid smells strongly of the aromatic when a spoonful is lifted and cooled slightly.
Whole spices in warm fat begin to sizzle faintly and release their aroma within thirty seconds.
Bitterness at the back of the throat is the signal to strain, whatever the timer says.
Failure guards
Bitter and astringent.
Steeped too long or too hot. Tannins come out after the aromatics, so the extra time only adds harshness.
Barely any flavour transferred.
Wrong solvent. Trying to extract a fat-soluble aromatic into water, or vice versa, gets very little regardless of time.
The infusion smelled wonderful in the pan and of nothing on the plate.
Volatiles boiled off. Infuse below a simmer, covered, and add delicate aromatics late.