Fire essence is created in an Essence Refiner. It can also be obtained from killing the Fire Guardian boss.
The materials required for the production of Fire Essence are;
- 1 Arcane Ash
- 2 Blaze Powder
- 2 Coal
The Arcane Ash goes in the center, with the remaining items surrounding it. You will also need essence from an Obelisk that has to be linked to the Essence Refiner using a Crystal Wrench.
(Do not use two, it wastes etherium)