In Japan there were two types: enshi (later shiokara natto) and tanshi (which vanished into history after the Heian period), and they are believed to be shi (pronounced as "kuki" in Japan and the kanji "久喜" was also used for the word) which is deemed to have been introduced in around the Nara period.
日本にはおそらく奈良時代頃に伝来した豉（し、日本ではくきと読まれ久喜の字もあてられていた）と考えられている塩豉（後の塩辛納豆）と淡豉（平安以降歴史から姿を消す）との2種類がある。