Coal bag

"Coal sack" redirects here. For the reward from the 2022 Christmas event, see Sack of coal.

ClosedOpen

Coal bag
Released							15 May 2014 (Update)
Members							Yes
Quest item							No
Properties
Tradeable							No
Equipable							No
Stackable							No
Noteable							No
Options							Fill, Open, Check, Empty
Destroy							You will have to buy another coal bag from Prospector Percy.
Examine							You can carry coal in here.
Values
Value							100 coins
High alch							60 coins
Low alch							40 coins
Weight							10 kg
Advanced data
Item ID							12019

Coal bagOpen coal bag? (edit)ClosedOpen? (edit)? (edit)? (edit)File:Coal bag.pngFile:Open coal bag.png? (edit)15 May 2014 (Update)23 January 2020 (Update)? (edit)YesNoNo? (edit)? (edit)NoNoNo? (edit)? (edit)Fill, Open, Check, EmptyFill, Close, Check, Empty? (edit)You will have to buy another coal bag from Prospector Percy.You can carry coal in here.100100 coinstrue60 coins40 coins6010.00010 kg? (edit)? (edit)falsefalseCoal bagOpen coal bag0Not soldinfobox-cell-hidden-? (edit)--No data to displayItem? (edit)1201924480? (edit)1201924480Versions: 2Default version: Closed

SMW Subobject for OpenHigh Alchemy value: 60Examine: You can carry coal in here.Is members only: trueIs variant of: Coal bagUses infobox: ItemImage: File:Open coal bag.pngWeight: 10.000Value: 100Version anchor: OpenRelease date: 23 January 2020Item ID: 24480

SMW Subobject for ClosedHigh Alchemy value: 60Examine: You can carry coal in here.Is members only: trueIs variant of: Coal bagUses infobox: ItemImage: File:Coal bag.pngWeight: 10.000Value: 100Version anchor: ClosedRelease date: 15 May 2014Item ID: 12019

The coal bag is a reward purchasable from Prospector Percy's Nugget Shop for 100 golden nuggets. The coal bag holds up to 27 pieces of coal (36 if a smithing cape is equipped). When smelting or superheating, coal in the bag will be used after the coal in the inventory. It is refillable just like essence pouches, though unlike an essence pouch, it does not degrade. This is useful for both mining and smithing as it effectively doubles the amount of coal a player can carry and thus the number of bars a player can make per inventory of ore.

Players can right-click to open the bag, which will have coal that the player mines from coal rocks be automatically placed inside the bag, providing there is space for it.

Only one coal bag may be in the player's possession at any time. It cannot be traded or dropped but it can be destroyed if it is empty. Players may sell their coal bag back to Percy in exchange for golden nuggets equal to 80% of its original cost (80 golden nuggets).

Warning: Attempting to use alchemy spells on the coal bag will destroy it regardless of whether or not there was any coal in it.

Those saving up for the Prospector kit to complete the Falador Hard Diary may wish to save their gold nuggets until they obtain all 180 needed for the Prospector kit, buy it to complete the task, and then sell it back for 80% of their nuggets (144 golden nuggets) and buy the coal bag, though keep in mind the set is also useful for a master clue step and for faster exp rates.

Note: Coal placed inside the bag will not add additional weight to your character until removed from the coal bag.

Optimal inventory setup

In the following charts, the first column identifies the type of bar to be made, the second indicates how many pieces of coal should be in each bag, the third represents how many of the primary ore (Iron, Lovakite, Mithril, Adamantite, Runite) is required, the fourth represents how many free inventory slots remain because they were not needed for ore or coal, the fifth shows how many bars are produced, and the last indicates the experience received from smelting the full load if the coal in the bag is used.

Note that smelting some of the higher ores leave several free inventory spaces. To make the best use of inventory space, the ores should be mixed instead of using just the one type of ore. For example, using 27 + 15 coal, 7 adamantite ore, 4 coals + 1 mithril ore or 5 gold ores at a normal furnace would leave no empty inventory space. This method however takes more clicking.

Blast Furnace (starting with an empty inventory)

Bar Type	Coal Needed (In Bag+In Inventory=Total)	Primary Ore	# of Free Inventory Spaces	Bar Yield	Smithing Experience
Steel	27 + 0 = 27	27 Iron ore	0	27	472.5
Mithril	27 + 9 = 36	18 Mithril ore	0	18	540
Adamantite	27 + 12 = 39	13 Adamantite ore	2	13	487.5
Runite	27 + 13 = 40	10 Runite ore	4	10	500

Normal furnaces (starting with an empty inventory)

Bar Type	Coal Needed (In Bag+In Inventory=Total)	Primary Ore	# of Free Inventory Spaces	Bar Yield	Smithing Experience	Smithing XP without bag
Steel	27 + 9 = 36	18 Iron ore	0	18	315	157.5
Lovakite	27 + 9 = 36	18 Lovakite ore	0	18	360	180
Mithril	27 + 13 = 40	10 Mithril ore	4	10	300	150
Adamantite	27 + 15 = 42	7 Adamantite ore	5	7	262.5	150
Runite	27 + 21 = 48	6 Runite ore	0	6	300	150

Superheat Item (starting with nature runes and a fire staff equipped)

Bar Type	Coal Needed (In Bag+In Inventory=Total)	Primary Ore	# of Free Inventory Spaces	Bar Yield	Smithing Experience	Magic Experience
Steel	27 + 7 = 34	17 Iron ore	2	17	297.5	901
Lovakite	27 + 7 = 34	17 Lovakite ore	2	17	340	901
Mithril	26 + 14 = 40	10 Mithril ore	2	10	300	530
Adamantite	27 + 15 = 42	7 Adamantite ore	4	7	262.5	371
Runite	27 + 13 = 40	5 Runite ore	7	5	250	265

Shop locations

This list was created dynamically. For help, see the FAQ. To force an update of this list, click here. For an exhaustive list, see here.

Seller	Location	Number in stock	Restock time	Price sold at	Price bought at	Change Per	Members
Prospector Percy's Nugget Shop	Motherlode Mine	1	0.6s	100	80	0.0%

Changes

Date	Changes
30 September 2020 (update)	Coal bags can no longer be filled from the Bank Deposit Box interface.
16 September 2020 (update | poll)	Players can now fill and empty a coal bag while inside their bank.
18 June 2020 (update)	The Coal Bag will now notify players of how many coal it is holding via the game chatbox rather than the chat dialogue box so as to prevent players from being interrupted.
5 March 2020 (update)	The opened variant's name was changed from "Opened coal bag" to "Open coal bag".
23 January 2020 (update | poll)	Open and closed versions have been added, which allows coal that the player mines be automatically placed inside the bag while opened, providing there is space for it. Open was added as a right-click option.
22 February 2018 (update | poll)	Emptying the contents of the coal bag into the inventory can now be done by holding down shift and left-clicking it if shift-click dropping is enabled.
20 November 2014 (update | poll)	Coal bags now have an 'empty' option when you have the bank interface open.