For the vial version, see Aggression potion.
Aggression flask detail

An aggression flask is a potion flask originally containing six doses of aggression potion. It is created by using aggression potions on a potion flask.

The flask is made by blowing robust glass, requiring 89 Crafting and giving 100 experience. Red sandstone can be mined at Oo'glog and smelted using the robust glass machine also located at Oo'glog.

To decant the potion into the flask, one must have at least 6 doses of aggression potion in their inventory, as well as one or more potion flasks. Using the flask on the potion will open a menu to decant them. The optimal inventory setup for decanting potions is 17 4-dose potions and 11 flasks.

Players using this potion during Slayer assignments are advised to use caution if collecting a new task from Morvran before it wears off, as the Iorwerth scouts and guards in his vicinity are affected by the potion.

This flask is tradeable. Once the potion has been partially drunk used, no more doses can be added to it. After all six doses have been consumed, the flask will shatter and disappear. Flasks can be combined together, but the empty flasks will still be destroyed afterwards.


[FAQ] • [doc]


  • This flask is unique in that non-(6)-dose flasks are listed on the Grand Exchange.
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