Grinding chocolate bars
|Pestle and mortar (tool belt)|
|Inputs (2,025,000)||Outputs (2,945,000)|
5,000 × Chocolate bar (2,025,000)
5,000 × Chocolate dust (2,945,000)
Chocolate bars can be bought off the Grand Exchange then later ground to turn a profit. Each bar costs 405, and takes 0.6 seconds to grind. The buy limit for Chocolate bar is 10,000 per 4 hours, meaning you can do this for two hours, earning 1,840,000 in total. It is possible to work around the limit by letting the order fill while doing other activities, directly trading with other players, or by using alternate accounts.