Wonderbag is a stand-alone, non-electric insulated bag designed to reduce the amount of fuel required in the cooking of food in developing countries.
In developing countries there are numerous advantages for the product, as it immediately helps ease deforestation of natural reserves, and it frees up those who would spend their time gathering the extra wood for fire fuel.
[1] Designed by Durban, South Africa-based entrepreneur Sarah Collins of Natural Balance, and poverty activist Moshy Mathe, the Wonderbag is aimed at societies where fuel is expensive or time-consuming to gather.
"[1] In 2022, over 2,500 Wonderbags were donated to two Ukrainian nonprofits in an effort to provide support during their ongoing conflict with Russia, and the organization has also worked to send them as aid to Gaza, Lebanon, Sudan, Haiti, Burkina Faso, and Jordan.
Shirley trained as a patternmaker and designed the inverted oversized 'beanbag' containing recycled polystyrene chips in a polyester-cotton fabric bag and lid within a corrugated cardboard box and personally marketed it across Zululand between 1976 and 1980.