This is project Al qinduan starting I am going to explain the product in this project ;

So basicly this is a cup that have auto heating procress using no electricity the way it works that it uses auto heating procress using a dry element mixture that activates with water and produces heat leading to boiling the water this is the first outer layer its made out of granite from the outside because Granite often has a very high heat resistance. This natural stone can survive temperatures as high as 250°C. Heat tends to do any kind of harm to a granite countertop if it is exposed to extremely temperate temperatures for a lengthy time period and a high specific heat capacity metal like aluminum it meats all of our requirments