Yes—leafy greens can be washed before wok cooking because they may take a while to wash. The cited guidance recommends completing not only the washing but also the chopping or slicing before the stove is turned on.
How to check the preparation sequence
- Treat washing as an early task. Leafy greens may require more washing time than other ingredients, so advance preparation is useful.
- Finish preparation before heating the wok. The recommended sequence is to have ingredients washed, chopped or sliced, and ready before cooking begins.
- Keep rinsing within the preparation stage. Under this sequence, greens are washed before wok cooking rather than while the wok is already heating.
What still needs confirmation
The cited guidance does not specify a rinse duration, water temperature, number of washes, drying method, or storage time after advance washing. It also does not establish that every type of leafy green requires the same treatment. Those details must be confirmed separately rather than presented as universal rules.