4 articlesThe Eitr Refinery is one of the most important structures you will build in Valheim‘s Mistlands biome. It is what turns Sap and Soft Tissue into Refined Eitr, the magical resource you need to craft pretty much everything worthwhile in the endgame including Mistlands weapons, armor and the Galdr table. Without it you are not getting very far in the biome at all.
Before you can build one though there is a decent amount of groundwork to cover. In this guide, I cover everything you need to build and run your Eitr Refinery safely.
Complete Eitr Refinery Guide
Before you can craft the Eitr Refinery, you need to gather a few specific resources to unlock its recipe. You will need 5 Black Metal, 20 Black Marble, 10 Yggdrasil Wood, 5 Black Core, and 3 Sap. I have broken down how to get each one below.
Black Metal
Black metal is the easiest one to get. You find black metal scraps by killing Fulings in the Plains biome. Then you smelt them in a Blast Furnace using coal as fuel. One black metal scrap takes about 30 seconds to smelt into a bar and it uses up roughly two pieces of coal.
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Black Marble
Black marble requires a bit more exploring. You need to find Petrified Bones also called Giant Remains scattered throughout the Mistlands. These can look like a giant ribcage or a massive skull half buried in the ground. You need a Black Metal Pickaxe to mine them. Bring a Wisp Light to clear the fog otherwise you will not see what you are doing.
Yggdrasil Wood
Yggdrasil Wood comes from Yggdrasil Shoot trees. You can find them growing in the Mistlands biome. They have white bark with black spots and stand out from the regular trees. You need a Black Metal Axe to cut them down. A lower tier axe will not even scratch them.
Each tree drops a mix of regular wood and Yggdrasil wood. The total yield is always twenty pieces of wood but the ratio seems random.
Black Cores
Black Cores are the most annoying ones to track down. You only find them inside Infested Mines. Those are the dungeons hidden under abandoned Dvergr buildings in the Mistlands. Black Cores are almost always on display stands in hidden treasure rooms.
Look for doors with glowing runes on them. Break down any wooden walls you see. Some mines have several cores, others have none at all. It is completely random and that is what makes it a bit frustrating.
Sap
Sap is a renewable resource once you get the setup right. You need to find Ancient Roots in the Mistlands. They look like large roots with glowing green veins running through them. Then place a Sap Extractor directly on the root. It collects one sap every minute and can hold up to ten at a time. The root refills slowly so you can just leave the extractor there and come back later.
To build the Sap Extractor you need the Dvergr Extractor first. You can find Dvergr Extractors inside Dvergr component crates. These blue chests spawn in occupied Dvergr settlements like their towers and camps in the Mistlands.
Just be careful when you break the crates. The nearby Dvergr will turn hostile and they do not mess around. Once you have one Dvergr Extractor you can craft the Sap Extractor at a Workbench using 10 Yggdrasil wood and 5 black metal.
Building a Safe Place For The Eitr Refinery
After you have built the Eitr Refinery, you cannot just plop it down anywhere you like. The thing constantly shoots out sparks that damage you and any nearby buildings. If you place it next to your wooden main base it will burn the whole thing down within minutes.
You need a dedicated room for it. Black Marble is completely immune to the spark damage so you want to build the whole enclosure out of that. You do not need anything fancy. Just build a room that is five blocks wide on each side. Make the walls four blocks high and use the fifth block as the roof. I have included an image below so you can see how it looks.
Leave one block spot open at the top as shown in the image below. That open space is where you will put the soft tissue into the grinder. You can just climb up there, drop it in and then hop back down.
The sparks will bounce around inside the marble room without breaking anything so you can just leave the refinery running. Make sure the floor is marble too. If you leave any regular stone or wood inside that room it will eventually break.
Wrapping Up
That is really all there is to it. Build your little marble room, drop in one Soft Tissue and one Sap, and the refinery gives you one Refined Eitr in return. The sparks bounce around harmlessly off the walls, so you can just walk away and let it work. Now you have a steady source of Refined Eitr for all that fancy Mistlands gear.
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