Engineering Students from US University Collaborate with Tanzanian Miller

Engineering students at St. Thomas

Engineering Students from US University Collaborate with Tanzanian Miller

On Friday, engineering students from the University of St. Thomas presented their senior projects that were developed with industry and nonprofits to engineer special prototype solutions to real-world problems. This year, five students worked with PFS volunteer Jesse Theis, who works for Bühler, PFS partner TechnoServe with support from USAID, and the University of Dar es Salaam in Tanzania to address a challenge that local miller Sozi Integrity faced.

Sozi Integrity is a milling company located in Tanzania. They mill maize into flour, and also sun dry and sell the separated bran to animal feeds processors. During the rainy season –September to May - the environment is not conducive to sun drying, and therefore Sozi loses about $833 worth of maize bran daily. The team worked on designing a scalable dryer that would ensure the dried bran revenue stream year-round, and reduce the food waste. The result of this project will be a dryer design and we’ve recently completed the first test run of a continuous rotary dryer which has been designed and developed over the last 8 months.

One of the biggest takeaways for the students was the chance to actually construct their design. Jesse Theis says he enjoyed watching them problem solve and learn. “Working directly with the students at St. Thomas was wonderful. They’re intelligent, resourceful and effective young entrepreneurs,” he said.

Now that the PFS and St. Thomas team are done with their part, the design and testing data will be passed on to the student engineering team at the University of Dar es Salaam for continued work. It will then be fabricated there and replicated for many companies like Sozi across Tanzania. Preliminary results of the design are showing that companies could recoup the cost of the new dryer in just two months, which would represent a significant savings for them over the life of the machine.


This USAID-funded project was implemented by TechnoServe in partnership with PFS and made possible by the generous support of the American People. 

General Mills
General Mills, the founding member of Partners in Food Solutions, is one of the world’s leading food companies, operating in more than 100 countries and headquartered in Minneapolis, Minnesota.
Cargill is an international producer and marketer of food, agricultural, financial and industrial products and services. Founded in 1865, the privately held company employs 150,000 people in 70 countries.
Royal DSM is a global science-based company active in health, nutrition and materials. By connecting its unique competences in Life Sciences and Materials Sciences DSM is driving economic prosperity, environmental progress and social advances to create sustainable value for all stakeholders.
Bühler is a global leader in the field of process engineering, in particular production technologies and services for producing foods and manufacturing advanced materials. Bühler operates in over 140 countries and has a over 10,000 employees worldwide.
The Hershey Company, headquartered in Hershey, PA, is a global confectionery leader known for bringing goodness to the world through its chocolate, sweets, mints and other great-tasting snacks.
Ardent Mills
Ardent Mills is dedicated to helping our customers innovate and grow, with the industry’s broadest range of flours, mixes, blends and specialty products.