China — 5000+ year history; classified aroma system developed in 20th century
Baijiu (white spirit) is the world's most consumed spirits category by volume, produced in China from various grains (primarily sorghum) using solid-state fermentation in mud or stone pits. The Chinese government classifies baijiu into aroma types (xiang xing): Sauce/Soy (Jiang Xiang — Moutai), Strong (Nong Xiang — Wuliangye, Luzhou Laojiao), Light (Qing Xiang — Fenjiu), Rice (Mi Xiang — Guilin Sanhua), and others. Each type uses different fermentation vessels, grains, and techniques.
Baijiu is one of the most complex spirit categories in the world — sauce aroma contains over 1000 identified flavour compounds; the fermentation complexity is extraordinary
{"Solid-state fermentation: grain mixed with qu (a fermentation culture brick) and fermented in pits dug into the earth","Sauce aroma (Jiang Xiang): long fermentation, multiple distillations (7+), aged in ceramic jars; characteristic soy-sauce, dark chocolate, dried fruit notes","Strong aroma (Nong Xiang): distilled from mud pits; strong, complex, slightly buttery with fruit and grain notes","Light aroma (Qing Xing): distilled from stone or ceramic pits; cleaner, more delicate, grain-forward"}
{"Moutai (Kweichow Moutai) is the national prestige brand — sauce aroma, 53% ABV; served at Chinese state banquets","The best entry point for Westerners: rice aroma (mi xiang) baijiu — lightest, most approachable aromatics","Baijiu and food pairing: strong aroma with Sichuan cuisine (the intensity matches); sauce aroma with delicate Cantonese preparations"}
{"Treating all baijiu as the same product — the aroma type differences are as significant as gin vs whisky vs rum","Drinking baijiu the Western way (sipping solo) instead of the Chinese way (small cups, with food, in toasting culture)","Serving cold — baijiu is best at room temperature; refrigeration suppresses aromatics"}
Baijiu: The Essential Guide — Derek Sandhaus