For a carbon-steel wok using The Woks of Life’s preheating method, light tendrils of smoke rising before you add oil indicate that it is hot enough. This is a method-specific cue, not a universal test for every type of wok.
How to check a carbon-steel wok
- Confirm that it is carbon steel. The smoke cue comes from guidance for carbon-steel woks.
- Preheat the wok before adding oil. The Woks of Life specifically recommends preheating first.
- Watch for light smoke. The publisher describes light tendrils of smoke as the point at which the wok is hot enough for its preheating method.
The source does not provide a preheating time, temperature setting, or burner level, so those details cannot be confirmed from this guidance.
Does this test work for non-stick woks?
No. The Woks of Life expressly cautions that this high-heat preheating technique does not apply to non-stick woks or pans. Do not treat its smoke cue as a readiness test for non-stick cookware.
What you still need to confirm
Check the wok’s material before using this method. If it is non-stick, or if you are following a different high-heat technique, the cited source does not provide an alternative readiness cue. Confirm the suitable heating guidance for that specific cookware before relying on visible smoke.