It is used on a baked potato to make a strange potato. Tuna and sweetcorn can then be added to make juju gumbo. 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. Once the potion has been partially used, no more doses can be added to it. After all six doses have been consumed, the flask will shatter and disappear.