hi. i am new, so il tell u abit about me. i am 13 and live on a farm in the south west. i make my rockets from potasium nitrate-sugar mix, but i was a bit bored one day, and looked arouned the farm for other powders that burn. i came across some wood(sawdust), and tryed that o. i mixed the sawdust with the potassium nitrate, and i was quite supprised wen, with abit of persuasion, it burst into flames and slowly burnt a hole thro my wooden chock, so if anyone wants avery hot, slowburneng fuel, try this.