Tiger NFI-A800 Vacuum Insulated Non-Electric Thermal Cooker, Double Wall, 271 Oz/8 L Includes 8.0 L(8.45qts) stainless steel inner pot with tempered glass lid Washable inner pot and outer container.Temperature retention 163.4 degree F + Removable lid for easy serving Compatible with induction heating method for inner pot Includes recipe book NOTE: This is not a typical cooker to heat food, but a cooker used to simmer food that has already been cooked using a stove or burner - Heat the food and once the food is at boiling temperature, customers can place it inside the cooker to keep is warm and let is simmer. The body that holds the pot is insulated and that is how it can keep the food warm NOTE: Please see the attached User Manual and refer to page 11 for trouble shooting. For usage instruction, please refer to pages 6-8