Torstol are in high demand as the final ingredient in Overloads. It is often profitable to clean the grimy herbs and sell them on the Grand Exchange. The price difference between clean and grimy torstol can change in an instant, so it is important to be patient with the prices. 28 herbs can be cleaned per inventory, and each inventory takes 15 seconds. Bank presets are recommended to achieve a maximum of close to 6700 herbs cleaned per hour or 6600 in most cases.