For the vial version, see Juju fishing potion.
Juju fishing flask detail

A juju fishing flask is a potion flask originally containing six doses of Juju fishing potion. It is created by using a juju fishing potion on a potion flask.

The potion grants the ability to catch Baron sharks, currently the second highest healing one-bite food in the game, which are obtainable while shark fishing.

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 juju fishing 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.

Once the potion has been partially drunk, no more doses can be added to it. After all six doses have been consumed, the flask will shatter and disappear.

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