Ichiran also distinguishes itself by letting the customers customise the ramen to their liking via a paper form.

There is no change in price no matter the options selected, except for getting over one clove of garlic and over a certain threshold of spice.

The branches serve their ramen using a chicken-based broth and dashi that does not use alcohol-based soy sauce or mirin.

[3][4] In November 2016, Ichiran USA opened a noodle factory and restaurant in the Bushwick neighborhood of Brooklyn in New York City.

Outside of Japan, Ichiran has restaurants in Hong Kong, Taipei, Taichung, and Brooklyn, New York.