Kewpie – Factory Tour
Kewpie Corporation is a Japanese manufacturer that produces and sells condiments, salad dressing, egg products, jams and health foods. It is well known for its popular brand of mayonnaise that comes in a soft-squeeze plastic bottle with a distinctive Kewpie baby doll logo and a red cap. The company operates eight plants in Japan and has several production bases overseas including in South East Asia, Europe and the United States.

Corporate Information
- Company: Kewpie Corporation
- Foundation: 1919
- Location: Headquartered in Tokyo
- Main Business: Manufacturing of packaged food products including condiments, dressing, egg products

Kewpie Corporation – Lean Characteristics
QC Circle, High-Mix, Low-Volume Production
Kewpie Corporation is a well-known food production company with over 100 years of history. The company founder Toichiro Nakashima encountered mayonnaise during his study visit to the United States and founded the company in 1919 with a hope to create delicious and nutritious condiments for the Japanese. The company began production of Japan’s first mayonnaise product in 1925.
Kewpie now operates eight plants in Japan with a clear distinction of roles and functions among each plant. The company designates two plants as their mother factories (namely Goka plant in Ibaraki Prefecture which covers Eastern Japan and Kobe Plant in Hyogo Prefecture for Western Japan) and the remaining six are regarded as their satellite plants. At their mother plants, the company’s flagship products are manufactured in large scale. In addition, the latest production technologies and equipment are also introduced and tested before being transferred to their satellite factories. Their satellite factories are where a wide range of their food products in varying volume are manufactured in high-mix, low-volume production environments. Their production is achieved in a flexible manner with the application of factory automation systems developed over the years.
The company has set up a corporate-wide Quality Control circle program. QC circles are small groups made up of shop floor operators responsible for quality control. They voluntarily and continuously undertake activities that improve the quality of their products as well as the safety and efficiency of their operation.
Kewpie Koromo plant is a satellite plant which was established in 1958 in Toyota City, Aichi Prefecture. The visit to Koromo plant provides an insight into the effective use of high-tech tools to achieve a high level of quality and efficiency as well as good examples of their QC circle activities.

Personally and professionally I found the week extraordinarily rewarding – not only as a fantastic Lean Japan Tour but as a cultural experience not to be missed. Imagine if you will… taking a group of people you had never met before, under your wing, in one of the most crowded cities in the world. Plenty…
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From a remote rural engineering company – to the shining lights of Japan’s finest. I have returned overwhelmed from the experience to learn from some of the worlds best manufacturers and absorb decades of experience from my fellow peers. Highly recommended and treat it as a sound investment for your company’s future!
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I enjoyed every aspect of this extremely well organised kaizen tour including: factory visits, translations by Paul and Ben, TPS training, sightseeing, accommodation, transportation, and meals. This tour is a must for anyone trying to understand / implement LEAN into their business or organisation. I hope the tour continues for many years to come as…
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It was an inspiring week with great learnings around lean and how it is applied across various levels of the supply chain. The tour also provides a nice glimpse into the Japanese culture with its amazing food and friendly people.
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If you have embarked on a lean journey The Lean Study Tour should be on your bucket list! It was inspiring to see the Toyota Production System in action as a management system, as well as the small improvements made day in and day out by dedicated and motivated teams all striving to continuously improve.…
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I would highly recommend the tour to anyone who is in the business of improving people. The ideas stimulated through this tour have helped me reform our entire vision of what improvement means for our business.
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The Shinka Management Lean Japan Tour is a professional development program run several times annually. The program includes a mix of lean and kaizen seminars, hands-on lean training and visits to several benchmark lean companies. For further information and program dates, see the lean tour overview page.
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