Superheat Item

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This article is about the spell. For the Seren prayer, see Superheat Form.
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Superheat Item is a non-combat Magic spell with two different uses. It can be used to smelt core ores into bars without a furnace, while it can also be used to re-heat an unfinished smithing item by 33% heat.

Casting this spell on ore creates only one bar, and it cannot be cast upon noted ores. The same Smithing level is required to superheat ore as the level required when smelting in a furnace. For example, 30 Smithing is required if you wish to superheat mithril ore and coal into a mithril bar. The ore amount required is the same as at a furnace. Smithing experience is also earned as if you were smelting the bar at a furnace.

If cast on coal with both an iron ore and mithril ore in the inventory, the higher level ore would be prioritised and a mithril bar would be created. The same applies to casting on luminite with both adamantite ore and runite ore available. In order to smelt the other intended bar, Superheat Item should be cast on the alternative ore.

Superheat Item cannot be used to make cannonballs, and casting the spell while mining will not interrupt the process of mining.

Casting at Artisans' Workshop[edit | edit source]

It is also useful to cast at Artisans' Workshop in conjunction with smelting gauntlets. By having 1 ore you want to smelt in your inventory you can cast superheat item on it and use ore from the ore bank and automatically deposit the bar into the metal bank. Since smelting bars with a furnace takes 4 or 3 ticks depending on smithing level and 3 or 2 ticks when using superheat form this can be a faster method of making bars than using a furnace. This can allow for a faster and more relaxed superheating compared to using a bank.

Since casting Superheat Item doesn't interrupt actions, you can make bars whilst training other skills. For example you can train fletching or herblore whilst casting Superheat Item to make some profit. You can even use a furnace and make bars with both superheat item and the furnace to make bars at an even faster rate. It also works while smithing items.

Costs of making bars[edit | edit source]

Main article: Calculators/Superheat

The data in this table is based on the current Grand Exchange prices, assuming all the ore and nature runes are bought from the Grand Exchange and the bar is sold afterwards.

Type of bar Material cost Profit Profit / Magic xp Profit / Smithing xp
Bronze 691 -121 -2.28 -121
Iron 1,205 -144 -2.72 -72
Steel 918 -80 -1.51 -26.67
Silver 519 -152 -2.87 -50.67
Gold 740 165 3.11 23.57
Mithril 796 -256 -4.83 -51.2
Adamant 1,765 57 1.08 8.14
Rune 2,669 54 1.02 5.4
Orikalkum 4,108 654 12.34 50.31
Necronium 6,023 27 0.51 1.59
Bane 6,657 -225 -4.25 -10.71
Elder rune 10,120 -552 -10.42 -21.23

Recommendations[edit | edit source]

Don't forget to wield a staff of fire, or other staff that provides unlimited fire runes such as an elemental battlestaff, fire battlestaff, mystic fire staff, lava battlestaff or steam battlestaff.

Adding Superheat Item to an action bar slot can speed up the process greatly, especially when using a keybind to access the action bar. When using the action bar, repeatedly casting the spell on the last ore in the inventory (most bottom-right slot) will start creating bars from the top, so you will not need to move your cursor to each ore individually, saving some time.

Update history[edit | edit source]

The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!
  • patch 28 January 2019 (Update):
    • You can once again cast Superheat Item on iron ores.
  • patch 21 January 2019 (Update):
    • You'll no longer lose more bars than intended when casting Superheat Item.
    • Casting Superheat Item now works as expected with smelting gauntlets.
  • patch 7 January 2019 (Update):
    • The smithing skillcape gives a smithing buff whenever the item is reheated. This is especially effective (but expensive) with the Superheat Item spell.
  • patch 2 November 2010 (Update):
    • The explorer’s ring's High- and Low-level Alchemy and Superheat Item spells now use a different interface to prevent confusion while alching.

Trivia[edit | edit source]

A player failing to cast Superheat Item, a result of the spell being attempted on a non-ore item
  • Prior to the Mining and Smithing rework, Superheat Item confer ring of forging's effect when smelting iron ores into iron bars, which it no longer does.
  • A graphical glitch may occur when using this spell multiple times in a row or if you cast it again before you have finished the first cast in which the animation occurs, without the player moving their arms. This glitch is prevalent in many other manually operated, repeatable spells including High level alchemy and jewellery enchants.
  • The name Superheat Item is a misnomer because in physics, superheating is the phenomenon in which a liquid is heated to a temperature higher than its boiling point, without boiling. Technically smelting an ore into a refined form does not superheat the item.
  • Explorer's ring 4 can be used to cast this spell for free 27 times each day.
  • Attempting to cast Superheat item on a non-ore object will result in the message Superheating that item doesn't do anything.
  • If you try this spell on an Elemental ore, then it will result in the message Even this spell is not hot enough to heat this item.