We endorse working with bamboo charcoal or makko to burn up your incense. A good way to tell if your charcoal has saltpeter in it's to search for crackling when lit. If it does, it most likely includes saltpeter. Suggestion: Adding the powdered woods or spices part of a recipe, https://kingbookmark.com/story18454435/5-tips-about-herbal-incense-recipes-you-can-use-today