In the master note of a potion, you might see a Question Mark icon. That means the master note is unknown. So, you can’t know what you will do to reduce the brewing time of the potion. In this case, in order to learn the master note of the potion, you should search the potion name on our website, or you should search the potion name on Google by adding “gameinfo.gg” keyword the end of the potion name. We provide you the master notes of all the potions.