Solar Cooking
Last edited: 26 February 2022      

Wonderbag logo, 11-13-13.jpg

The Wonderbag is a commercially-produced heat-retention cooker that allows food that has been brought to a boil on a stove, to continue cooking for hours after it has been removed from the fuel source.

As of 2014, over 650,000 bags had been distributed in South Africa, for which the first round of carbon credits have been registered and issued. It is also being manufactured locally in Rwanda and Turkey, with pilots poised to launch in Kenya, Nigeria and Somalia in 2014. Also, over 4,500 bags were been sold in the UK, with a buy-one-give-one model to support getting Wonderbags into humanitarian relief.

Wonderbag use diagram, 11-13-13.jpg

Audio and video[]

  • October 2014:

WonderBag FinalCut

Articles in the media[]


  • Reflectix is a commonly available quilted insulation with a reflective surface. It has been suggested to add one or two layers to the inside bottom of a Wonderbag to help retain the heat, as the bag bottom will compress over time with heavy pots.

See also[]

External links[]


Unit 3, 8 Richefond Circle,
Ridgeside Office Park
Umhlanga, 4319
South Africa

Postal address:
P.O Box: 263
La Lucia, 4153
South Africa

Tel.: +27 031 536 8220