Joja Cola is a loot item. It can be looted from any type of fishing, including Crab Pots, and found in Garbage Cans. It may also be purchased at JojaMart for 75g, or from the Vending Machine inside the Stardrop Saloon.
When consumed, Joja Cola restores 5 health and 13 energy.
The selling price is 25g.