铁锅炒菜为什么更香？锅气的化学原理Why a Wok Makes Food Taste Better — The Chemistry of Wok Hei (Maillard at 140°C)

一口铁锅，凭什么让菜变香？ 铁锅确实会带出一点铁，但那是营养问题，不是香味问题。香来自高温、快速传热、表面失水。 九分钟里讲清三件事： ① 水不干，温度就卡在 100℃ 上不去——100℃ 之前没有香； ② 越过 140℃ 才进入美拉德反应（1912 年巴黎，美拉德；1953 年 Hodge 才把路线画清，隔了四十一年）； ③ 锅气是"香气＋油雾＋少量烟气"的气溶胶，不是一种神秘分子。 最后给家用四步：**锅热、菜干、分批、通风**。 Why does a wok make food taste better? Yes, a wok releases a little iron — but that's a nutrition story, not a flavour story. Flavour comes from high heat, fast heat transfer, and a dry surface. In nine minutes: ① While water remains, the temperature stays pinned at 100°C — and below 100°C there is no aroma. ② Past 140°C you enter the Maillard reaction (Paris, 1912; Hodge only mapped the pathway in 1953 — forty-one years later). ③ Wok hei is an aerosol of aroma, oil mist and a little smoke — not one magic molecule. Four steps for home cooks: hot wok, dry food, small batches, ventilation. `#wokhei` `#maillard` `#foodscience` `#chemistry` `#stirfry` `#cookingtips` `#kitchenscience` `#chinesefood`