Ranarrs are the most commonly traded herb, and they are used to create Prayer potions. It is often profitable to clean the grimy herbs and sell them on the Grand Exchange. Like all methods involving large amounts of buying and selling, it is recommended to test the market first to make sure cleaning ranarr is profitable. 28 herbs can be cleaned per inventory, and each inventory can take from 10 to 20 seconds. Due to the risk of repetitive strain, it is advised to use make-x to speed up the cleaning process.