Chinese Stir-Fry Guide: Wok Hei, Heat and the Right Order
A great stir-fry is ready in three minutes, but the work that makes it great happens before the wok gets hot. The technique is a sequence: everything cut, dried and lined up, the meat treated so it stays tender, ingredients added in order of how long they take, and a sauce balanced in one bowl. This guide breaks that sequence down, with the ratios worth memorising.
What wok hei really is
Wok hei is the smoky, seared flavour that comes from food hitting metal hot enough to brown it instantly, and it only happens when the surface of the food is dry. At home you get close by heating the wok until it just begins to smoke, using a high smoke-point oil, and cooking in small batches so the pan never loses its heat. Chase the sear, not the flame.
Prep everything first (mise en place)
Stir-frying is over in two to three minutes, so there is no time to chop mid-cook. Cut everything to a similar size so it cooks evenly, keep items that need different times in separate piles, and mix the sauce in a small bowl before you turn on the heat. Line everything up within reach of the hob. This step separates a relaxed stir-fry from a frantic one.
Velveting: the restaurant trick for tender meat
Thinly sliced meat goes tough fast over high heat unless you protect it. Toss 250 grams of sliced beef or chicken with one teaspoon of cornflour, one teaspoon of soy sauce, one teaspoon of Shaoxing wine and a little egg white, then leave it for 15 to 30 minutes. The starch coating holds in moisture and gives that slippery, tender texture. For an even softer result, add a quarter teaspoon of baking soda and rinse it off before cooking.
The right order of ingredients
Start with aromatics — garlic, ginger and the white parts of spring onion — in hot oil for ten to fifteen seconds, just until fragrant, because they burn quickly. Add the protein and cook until nearly done, then remove it. Cook denser vegetables next, return the meat, add leafy greens for the last thirty seconds, and finish with the sauce. Toss the sauce around the rim of the wok so it sizzles and coats everything.
A sauce formula worth memorising
For about 250 grams of ingredients, mix one tablespoon of light soy sauce, one teaspoon of dark soy sauce, one teaspoon of sugar, one teaspoon of rice vinegar, one teaspoon of cornflour and 100 ml of water or stock. Light soy brings salt and savoury depth, dark soy brings colour and mild sweetness, and the cornflour thickens the sauce so it clings. Adjust sugar and vinegar to taste.
Fried rice and noodles follow different rules
Fried rice needs cold, day-old rice, because fresh rice steams and turns sticky. Break up the clumps with wet hands before you start. Scramble the egg first in plenty of oil and remove it, then fry the rice over the highest heat you have, pressing it into the pan and letting it crisp for a few seconds before tossing. Finish with white pepper and a few drops of sesame oil, off the heat.
Frequently asked questions
Why is my stir-fry soggy?
Too much food in the pan, wet ingredients, or heat that is too low. Dry everything, cook in small batches, and let the pan recover between them. Sauce added too early also steams instead of glazing.
What oil is best for stir-frying?
Peanut, rice bran, canola or avocado oil — anything with a high smoke point. Butter and extra virgin olive oil burn at wok temperatures. Add the oil to an already hot wok.
Do I need a wok?
No. A large, heavy skillet works if it holds heat and leaves room for the food to sit in a single layer. A wok simply gives you more surface area and makes tossing easier.
How do I make meat tender in a stir-fry?
Slice it thinly across the grain, velvet it with cornflour and egg white for 15 minutes, and cook it briefly over high heat. Overcooking is the main reason stir-fried meat turns rubbery.
Light or dark soy sauce?
Light soy is your everyday seasoning — salty and savoury. Dark soy is thicker, slightly sweet and used mainly for colour; a teaspoon is plenty. Seasoning with dark soy alone tastes bitter.