Soyinfo Center

In October 1972 Willam Shurtleff and Akiko Aoyagi began full-time research on soyfoods in Japan while writing The Book of Tofu. In August 1976 they founded SOYINFO CENTER (named Soyfoods Center until 2006) in California.

Our Mission
To be the world's leading source of information on soy, especially soyfoods, new industrial uses, and history, in both electronic database and printed book formats. To provide the information needed to transform soybeans into food products.

Book Sales
Our books have sold more than 820,000 copies. These include three popular books (The Book of Tofu, The Book of Miso, The Book of Tempeh), three production manuals (Tofu & Soymilk Production, etc.), 40 comprehensive bibliographies, plus market studies, histories and books of color graphics.

Building an Industry
Our three production manuals have played a key role in starting more than 450 soyfoods businesses in the United States, Europe, Latin America, and Africa .

SoyaScan Database
Contains more than 75,000 records from 1100 B.C. to the present, including more than 62,000 published documents, 14,000 commercial soy products, 5,500 original interviews, and 5,300 unpublished archival documents.

Research Library
More than 70,000 documents, almost all of which have a record in the SoyaScan database. Graphics Collection: More than 4,000 labels, ads, sell sheets, and other graphics, mostly color originals, arranged by subjects. All our graphics on some subjects have been published as color books and deposited in the USDA National Agricultural Library.

Friends of the SoyInfo Center
People who would like to support our work by contributions, volunteer work, or work on special projects.
Please contact by phone if you are interested.

Book of Tofu

the Book of Miso

the Book of Tempeh

Top Soybean Plant
Photo By Mark L. Tucker