Gansu jiangshui noodlesNoodles in tangy fermented vegetable broth
Tianshui and other towns in Gansu keep a crock of jiangshui going all summer: a pale, sour liquid made by fermenting greens in starchy noodle water. It is heated with chilli, Sichuan pepper and garlic chives and poured over hand-cut noodles, a cooling, refreshing bowl that people say beats the heat. The ferment takes 3–4 days in a warm kitchen, then keeps going for weeks if you top it up. Chef's tip: a spoonful of sauerkraut brine jump-starts the first batch, so it sours cleanly instead of growing off-flavours.





































































