Pure essence

Ironman verdict

At least 9 monsters drop it. The easiest is Armoured zombie (level 21, 12/128); the best rate is Giant mole (level 230), at 14/128, about 98 per kill. You can also make it yourself: it takes 51 Crafting and gives 18 Crafting XP, using Essence lump. There are 2 other recipes below. Other sources include Gnome Restaurant, Mystery box (random events), Wizard Cromperty and Young impling, plus 4 more listed below. Making ten takes 10 × Essence lump and gives 180 Crafting XP. Reaching level 51 Crafting takes 111,945 XP in total; the Crafting calculator counts the actions and materials to any target, and the Crafting guide has the Ironman training route. 55 recipes use Pure essence, including Air rune, Armadyl rune and Astral rune. Pure essence is available on free-to-play worlds too. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 2 coins, which is 2 less than the shop price, so buying it to alch does not pay.