Wonderbag

The Wonderbag is a simple but revolutionary non-electric slow cooker developed for women cooking over open fires.
After bringing a pot of food to the boil and placing it in a foam-insulated Wonderbag, the food will continue cooking for up to 12 hours without additional heat.
Because the pot spends a fraction of time on the fire or stove, Wonderbag cooking reduces by 70% the amount of wood, charcoal, and other dirty-burning fuels used in the home. This saves hours of time and labor, and improves indoor air quality and overall health.