Rocket food dryer





The Rocket Food Dryer is a hybrid wood powered/electric food dryer that has a maximum capacity of 100 kg of raw food (such as mangoes, tomatoes, pineapple, bananas, and mushrooms). It utilizes a small wood furnace and two 80 W electric fans. During tests in Malawi this year, the Rocket Dryer used 20 kg of eucalyptus over an 11 hour period to produce 6.9 kg of dried mango (the average wood: dried fruit ratio during trials was 2.94:1). This compares favorably to the existing system, which required ~1000 kg of wood to perform the same task.
Please contact us here to buy a copy of the plans or to request more information.

Rocket tobacco curing barn

tobaccobarnRB40withcaption500x400Although many people are not aware of the scope of the problem, tobacco production and curing is devastating the native forests of Uganda, Kenya, Tanzania, Zambia, and Malawi. It is estimated that over 110,000 ha of forest is lost each year.

Since 2005, we have been developing an improved tobacco curing system for small holder farmers in southern Africa. In 2007, field research conducted by GTZ/ProBEC showed that the rocket barn reduced fuel consumption by 50% and increased farmer income by approximately USD1300/p.a. This year in Malawi, Hestian Innovation will partner with Alliance One and Limbe Leaf to build approximately 1500 barns in the next 6 months.

Working with BAT and GTZ/EAPUganda, we are also prototyping a new and unique barn for Uganda.

Internship Opportunity! We are interested in placing interns in Malawi to help support the dissemination effort. If you are interested, let us know by clicking here.

Research Opportunity! If you are interested in helping in developing collaborative research projects with universities to study and improve the design of the rocket barn, let us know by clicking here.

Contact us for user guides and step-by-step plans for constructing rocket barns, available on a case-by-case basis. 

Funding for development of the Institutional Stove Design Tool and part of the original funding for this web site were provided by the Ashden Trust.