Iekei ramen: a flavour and a family of shops

Noodles and toppings

Relatively short, thick straight noodles accompany a soup finished with chicken oil. Chāshū, spinach and sheets of nori are familiar toppings, and rice is a common accompaniment to the bowl. Recipes and service vary between shops.

Stock, seasoning and chicken oil

Tonomaruya explains the components as separate contributions. Stock drawn from pork and chicken bones supplies the base; the soy-based seasoning controls the soy character and seasoning strength; chicken oil contributes aroma and richness. Yoshimuraya founder Minoru Yoshimura also stresses chicken oil in an interview, connecting it with the soup’s glossy surface. Asking for stronger seasoning and asking for more oil therefore change different parts of the bowl. The explanation does not imply a standard recipe shared by all shops.

Yoshimuraya opened in Shin-Sugita in 1974. Takashi Jindō trained there and managed its second shop, Honmokuya, before opening Rokkakuya in 1988. Rokkakuya joined the Shin-Yokohama Ramen Museum when it opened in 1994. Its main shop closed in 2017, while a project involving former pupils and the separately run Totsuka shop brought Rokkakuya1994+ to the museum in 2024.

Lineage and style

A recognised direct relationship with a founding shop is a specific claim. A restaurant serving an iekei-style bowl makes a broader stylistic claim. Similar noodles or ordering options alone do not establish a teacher–pupil relationship.

Sugitaya’s authorised independence

Sugitaya offers a documented example of authorised independence. In a 2015 interview, owner Susumu Tsumura recalled closing his earlier ramen business, training at Yoshimuraya for about a year and opening Sugitaya in 1999 with permission to branch out. The shop also identifies itself as Yoshimuraya’s first direct-lineage shop. Here the claim rests on particular people, training and authorisation, rather than the appearance of the bowl or the character “家” in a name.

Firmness concerns the noodles, strength generally concerns seasoning, and oil quantity concerns added fat. They describe different adjustments rather than three names for thicker broth. Each shop determines which choices it offers.

Iekei-style ramen also spread through chains and supply systems. Gift, the group behind Machida Shoten, dates that shop’s start to 2008, its business supporting other operators to 2010, and its Hiratsuka noodle factory to 2013. The company describes factory production of noodles, chāshū and soup, with directly operated, supported and franchise stores. This is one business model, not proof that every iekei shop uses central production or has a direct Yoshimuraya lineage.