Zaru soba was originated when Iseya, a soba restaurant located near Sunosaki Benzaiten (Shrine in Fukagawa Koto Ward, Tokyo) in Fukagawa served soba in shallow bamboo baskets, it became a popular big seller.
ざる蕎麦の発祥は、深川の州崎弁財天前にあった伊勢屋が、蕎麦を竹ざるに乗せて出したところ評判が良く、大いに売れたことによる。