1) Fermented soy-based food 
Douchi ( 豆豉, Pinyin: dòuchǐ, Jyutping: dau6si6) is a type of fermented and salted black soybean. In English it is known as fermented black soybeans, Chinese fermented black beans ( 黑豆豆豉, Pinyin: hēidòu dòuchǐ, Jyutping: hak1dau6 dau6si6), salted black beans, salty black beans, or just `black beans`. They are a flavoring most po.....