@healtrekchina: Douzhi: Beijing’s infamous fermented mung bean drink! 🥣✨ It’s a traditional Beijing specialty made from the byproduct of mung bean starch extraction, which is then left to naturally ferment. 🤔The result? A warm, greyish broth with a seriously distinct, tangy, and funky sour flavor. #chinatravel #chinesefood #chinesestreetfood #medicaltravel #travelchina #travel