It really is very simple. You use your hob to start the cooking process and heat up your pot of food in a metal casserole pot with short handles. Bring the food to the boil and simmer it for a short time. Then place the pot with lid inside your Wonderbag.
The Wonderbag's clever heat retention properties allow food that has been brought to the boil to finish cooking while in the bag without the use of additional energy.
As well as slow cooking, the high insulation properties of the Wonderbag also keeps frozen food safe for up to 12 hours.
Material: 100% heavy duty cotton. High insulation foam filling.
Hand washable Weight: 850 grams
Suitable pot sizes: 2-12 litres