Why go
The most useful food question in China is often where a dish comes from. Jiangsu’s braised and stewed preparations differ from Sichuan’s more assertive seasonings, while coastal access changes the role of seafood. Comparing regional methods makes familiar names on a menu more informative.
The full story
Climate, geography and available ingredients shape regional cooking as much as recipes do. Cantonese, Shandong, Jiangsu and Sichuan are among the best-known traditions, but each contains local variation. A Jiangsu menu may show the importance of braising and stewing; a Sichuan menu often foregrounds stronger seasonings and a different balance of aromatics. Seafood has a different place where lakes or coastlines make it available. Around Shanghai, the source notes the local appeal of hairy crab; Peking duck and dim sum are better known internationally but belong to particular food settings rather than every region. Drying, salting, pickling and fermentation appear across many traditions because they solved practical storage problems. For a traveler, the point is not to memorize a fixed list of regional traits. Ask what local ingredient or cooking method defines the dish in front of you, then compare it with the next city.