Deep Red Chili Powder - Extra Hot is a type of ground red chili pepper that has a very high level of heat. It is made by grinding dried red chili peppers that are known for their high level of capsaicin, the compound responsible for the heat in peppers. The powder is very fine and has a deep red color. Deep Red Chili Powder - Extra Hot is commonly used in cuisines that call for intense heat, such as Indian and Thai cuisine.