大火 (High Heat)
Pinyin: dà huǒ
Definition
Da huo means maximum burner output, typically 400-500°F (200-260°C) wok surface temperature, used for searing, stir-frying, and achieving wok hei. It is the default heat level for most Chinese stir-fry dishes, creating the rapid Maillard reaction that gives restaurant-quality flavor. The wok should be heated until a drop of water evaporates instantly (within 1-2 seconds) before adding oil.
Stove Parameters
Gas
Full flame, tips reaching 2-3 inches past wok edge
Gas provides the most authentic da huo experience. Turn the burner to maximum so flames wrap slightly around the wok's curved sides. A standard home gas burner produces 12,000-18,000 BTU; a wok burner delivers 100,000+ BTU.
Induction
Power level 9-10 (2,000-2,400W)
Induction heats a flat-bottomed wok extremely fast. Set to maximum power and preheat for 60-90 seconds. Use a flat-bottomed carbon steel wok for optimal contact. The surface temperature will reach 450°F+ within 2 minutes.
Electric
Highest setting (typically 10/10)
Electric coil burners are the slowest to reach da huo temperatures. Preheat the wok for 3-4 minutes on maximum. Response time is slow, so avoid removing the wok from the burner during cooking.
Ceramic
Maximum setting (typically 9/9 or 10/10)
Ceramic glass cooktops can reach da huo temperatures but respond slowly to adjustments. Preheat for 2-3 minutes on maximum. Use a flat-bottomed wok to maximize surface contact with the glass top.
Common Mistakes
- Adding food before the wok is fully preheated — the wok should smoke lightly before oil is added
- Overcrowding the wok, which drops the temperature and causes steaming instead of searing
- Using a non-stick pan on da huo, which damages the coating and releases toxic fumes above 500°F
- Not having all ingredients prepped (mise en place) before turning on high heat — da huo cooking moves in seconds, not minutes
FAQ
How do I know when my wok is at da huo temperature?
Flick a few drops of water into the dry wok. At da huo temperature (400°F+), the water will bead up and evaporate within 1-2 seconds (Leidenfrost effect). You should also see a faint wisp of smoke rising from the wok surface. If the water just sits and sizzles slowly, the wok is not hot enough.
Can I achieve da huo on a home stove?
Yes, but with limitations. A home gas burner (12,000-18,000 BTU) reaches about 60-70% of restaurant wok burner intensity. Compensate by cooking in smaller batches (no more than 8 oz of protein at a time), preheating the wok for 2-3 minutes, and using a thin carbon steel wok that heats quickly.
What is the difference between da huo and bao chao (explosive stir-fry)?
Da huo is a heat setting, while bao chao is a cooking technique that uses da huo. Bao chao involves tossing ingredients rapidly in a smoking-hot wok for 30-60 seconds. Da huo is also used for other techniques like deep-frying and rapid boiling, not just stir-frying.