Miracle bag. The insulated bag that cooks food without electricity

wonder bag

wonder bag It was designed by Sarah Collins in South Africa, and has already avoided enough CO2 emissions to circumnavigate the globe 9,452 times. This incredibly simple innovation is an insulated bag that cooks food, even after it comes out of the kitchen.

Originally designed as a solution for the poorest South Africans who barely have enough money to buy food let alone energy, these bags reduce fuel consumption by 30%.

Fully recyclable, they are so convenient and efficient that Unilever has already ordered five million of them and are distributed worldwide. Wonderbag has the ambition to sell enough in the next five years to save up to 8 million tons of CO2.


how does the wonder bag work?


Nothing’s easier. You just put the pot of food on the stove – which can be stew, rice, cornmeal or other staples. Once brought to a boil, the pan is placed in the cloth bag filled with recycled polystyrene and the bag lid is closed. That’s all. The bag is so well insulated that it will continue to cook food.

Miracle bag.  The insulated bag that cooks food

Besides helping to save energy and water, since there is less evaporation, this incredible product has many environmental benefits.


Since less fossil fuels are burned for cooking, less CO2 is emitted into the atmosphere. With the purchase of bags by Unilever (5 million), 2.5 million tonnes of CO2 will be avoided each year in the atmosphere.


  1. Reduces fossil fuel consumption by 30%.
  2. Minimize CO2 emissions.
  3. It removes the toxic smoke from cooking with fossil fuels, reducing respiratory illnesses.
  4. Being a process that does not require human control, the time we use to cook is reduced.
  5. Do not burn food.
  6. Reduce possible accidents in the kitchen.

How to make a homemade Wonderbag.


In instructables you have a complete manual so that you can create your own homemade bag of wonders step by step.

We share a recipe, lentil stew 😉


If you prefer to buy it already made, you can buy it on Amazon.

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