Shelf · Knife & prep · No heat
Zesting
Taking only the coloured outer skin of a citrus fruit, and stopping the moment you reach the white underneath.
Why it works
Almost all of a lemon’s smell lives in tiny oil sacs in that coloured layer, and none of it is in the juice — which is why juice alone tastes sour rather than lemony. The white pith directly under it holds the bitterness instead, and it starts one millimetre down.
The tell
The zest is uniformly coloured with no white flecks in it, and the fruit left behind looks scuffed rather than skinned.
- Colour still on
- Colour only
- Into the white
How it fails
Bearing down. Pressure is what takes you into the pith, and pith cannot be tasted out again. Use a light hand, turn the fruit as you go, and stop on each patch as soon as the colour is off it.
In the app, the card opens on the recipe step that names it, with the tell drawn.
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