Shoda Shoyu made custom sauces fresh by letting orders pull production

Shoda Shoyu began as a soy-sauce brewer in 1873 and later expanded into noodle soups, ramen broths, sauces and other processed seasonings. Its corporate history says it joined the NPS Research Association in April 2007, after the group had spent decades adapting Toyota Production System ideas to non-automotive companies.

The problem was not simply old equipment. Shoda's president told Toyo Keizai that a subsidiary making convenience-store boxed meals and prepared foods had become unprofitable, while the parent company was also missing sales and profit plans. The company needed a way to serve increasingly custom seasoning orders without burying itself in inventory.

NPS gave the company the operating trick: build production around the customer's pull. Shoda said it incorporated a system that matched customer demand, improved productivity, stopped making extra goods, lowered defects, improved inventory turnover and achieved 99% delivery-date adherence.

Freshness came from not making ahead

Custom seasoning is valuable only if it arrives fresh and exactly as ordered.

Overproduction hides problems in inventory; pull production exposes them early.

A study group gave a mid-sized maker outside Toyota access to outside eyes and shared routines.

The mechanism linked freshness, defect reduction and working capital instead of treating them separately.

Pull systems are not only for cars: any perishable or customized product can trade inventory for response discipline.

Shoda kept expanding beyond soy sauce into customized seasoning work. Its company profile lists 2025 sales of JPY 29.0 billion and 468 employees, while JETRO noted its UK plant made roughly 100 sauce products for supermarkets and restaurants.