Fermented black beans—also known as dòuchǐ (豆豉) in Mandarin—are black soybeans that have been salted and allowed to ferment, creating a deep umami flavour used widely in Chinese cooking. There’s often a question: once opened, do these beans need to go into the fridge, or can they be safely stored at room temperature?
                 
    
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                2025-10-27