Coal bag

The Coal bag holds up to 27 pieces of coal. When smelting or superheating, coal in the bag will be used before the coal in the inventory.

The coal bag is a reward purchasable from the rewards trader for 20,000 Dungeoneering tokens. It requires a Mining and Dungeoneering level of 35.

The coal bag is refillable just like the rune essence pouch.

This item cannot be traded or dropped but it can be destroyed. =Use= Using some simple calculations:

When smelting for steel bars at the Blast Furnace: one should carry a fillled bag of 27 coal and an inventory of 27 iron ore for maximum efficiency, which give 27 steel bars per run.

For smelting steel bars at any other location: one should carry a filled bag of 27 coal,and the rest of inventory with 18 iron ore and 9 coal, which give 18 steel bars per run.

Some more calculations. The first column tells you how many bars you can make with one walk. The second one tells you how many free inventory slots you've got free. The last column tells you how many coal you need to place in your inventory besides the coalbag.