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Tan Leather is a Lunar spell which tans up to 5 hides in the player's inventory, with no extra gp cost like there would be with the normal process of tanning. However, in order to cast the spell, the player must have completed all of the easy, medium, and hard tasks of the Fremennik Diary.

With good timing, this spell tans around 8000 hides per hour, giving the player ~130K Magic experience per hour and can be used as a good method of money making.

As cowhide can be tanned into either soft leather or hard leather, it is possible to toggle between the two by right-clicking the spell icon.

Cost[]

Spell cost
InputCost
5Fire rune1Nature rune2Astral rune560
Combo runes
1Nature rune2Astral rune5Lava rune555
1Nature rune2Astral rune5Smoke rune890
1Nature rune2Astral rune5Steam rune875
Staves
1Nature rune2Astral runeTome of fire535
1Nature rune2Astral runeLava battlestaff535
1Nature rune2Astral runeSteam battlestaff535
1Nature rune2Astral runeStaff of fire535
1Nature rune2Astral runeSmoke battlestaff535

Profit/Loss[]

The formula below, assumes you will be tanning 5 hides per spell, buying the dragonhides, nature rune, the astrals and will be casting the spell with a smoke/lava/fire/steam staff, or Tome of Fire

Hide Hide cost Leather price Profit/Loss per hide Tanner profit
Cowhide (Leather) 156 209 −54 52
Cowhide (Hard Leather) 156 203 −60 44
Green dragonhide 1,420 1,564 37 124
Blue dragonhide 1,755 1,929 67 154
Red dragonhide 2,241 2,416 68 155
Black dragonhide 2,929 3,106 70 157


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