Welcome to Elderfield mining artifacts and furnace smelting

Mining in Welcome to Elderfield is more than smashing rocks for coin — every haul you pull from those descending shafts can be transformed at the furnace into metal bars that fuel your entire progression loop. According to the Welcome to Elderfield on Steam listing, copper, iron, and gold veins all sit layered across the multi-floor mines, alongside rare geodes that hide ancient relics and fossilized tentacles. The trick is knowing which artifacts are worth smelting, which to sell, and how the furnace guide path dovetails with metal bars crafting at the workshop.

If you have been hauling raw ore back to town and wondering why your inventory is overflowing while your tool upgrades still feel brittle, this guide is your reset. We'll walk through locating mining artifacts, optimizing ore smelting runs, and turning the bars you produce into real progression — sprinklers, bombs, and gothic décor included.

Understanding Mining Artifacts in Welcome to Elderfield

Before you can smelt anything, you need to know what counts as a mining artifact in Welcome to Elderfield. The term covers a surprisingly wide family of finds pulled from ore veins, cracked geodes, and the deeper cavern encounters that dot the descending mine floors.

What Counts as a Mining Artifact

Every Welcome to Elderfield mining artifact falls into one of three practical buckets, each with its own smelt-or-sell economics: raw ores destined for the furnace, refined metal bars for crafting, and rare curios that only drop from deep-node veins in the eastern quarry. Raw ore like copper or iron chunk usually clears 18–25 coin per unit at the trading post, but feeding five units into a furnace produces a single metal bar worth 60–90 coin after smelting time, almost tripling your margin. That gap is the reason most miners check their ore bar value before hauling anything back to town.

According to the Mining Expeditions, Ore Veins & Geodes Steam listing, copper and iron ore veins populate the upper floors while gold veins and rare gemstones like emeralds and rubies live deeper. Geodes drop fossilized tentacles and ancient relics that don't smelt but are valuable on the market or for specific craft recipes.

How Artifacts Drop by Floor Depth

Floor depth drives both the rarity and the danger of every haul. The deeper you dig, the more lucrative the artifacts become — but the more hostile the environment. Here is a quick reference for what you can expect to find at each tier:

Steam Community feedback reported by players confirms that elevator shortcuts every five floors make descent sustainable, but you will need an herbal filtration mask before tackling the toxic gas pockets below floor 21. Plan your runs around these breakpoints to avoid backtracking with full packs and no stamina.

For a deeper breakdown on locating each ore type, our iron ore locations reference maps floor-by-floor spawn rates across all three metal tiers, and pairing that page with your artifact runs lets you smelt surplus drops into copper bars or iron bars between excavation trips — a useful loop once furnace fuel starts to outpace your pickup capacity on floors below 40.

The Furnace Guide: Smelting Ore Into Metal Bars

The furnace guide path in Welcome to Elderfield centers on a single building in town — the forge, where raw ore becomes metal bars ready for crafting. Welcome to Elderfield ore smelting is intentionally simple, but the small choices you make around fuel, batch size, and timing matter more than most new miners realize.

Step-by-Step Smelting Process

Follow this loop every time you return from a mine run to convert raw ore into usable bars: open the Furnace menu, deposit your Copper Ore and Iron Ore stacks, and choose Smelt — each batch consumes 5 ore and yields 1 bar in roughly 8 seconds, so a full 25-ore haul turns into 5 copper or iron bars that unlock Anvil recipes, tool upgrades, and the bronze-tier crafting tier required for late-game Elderfield mining artifacts.

1. Empty your pack at the chest near the mine entrance to avoid smelting with full inventory space.

2. Walk to the forge and interact with the furnace — it accepts copper, iron, and gold ore in any mix.

3. Load ore and fuel — coal or wood acts as the smelting fuel, with coal halving smelt time per bar.

4. Wait for the smelt bar to fill — each unit of ore takes roughly 12 seconds with wood, 6 seconds with coal.

5. Collect the bars into your inventory and route them directly to storage or the workshop.

Community testing on the Steam Discussions thread about Mining Artifacts & Smelting Profits notes that smelt output is one-to-one: every 5 raw copper ore yields 5 copper bars, every 5 raw iron ore yields 5 iron bars, and the same ratio holds for gold. There is no RNG loss at the furnace, so you can plan exact bar counts for your next upgrade.

Fuel Choices and Smelt Speed

Fuel choice is the single biggest lever for Welcome to Elderfield ore smelting efficiency, directly shaping how long you wait at the furnace and how many metal bars crafting batches finish before your shift ends. Coal charges the furnace to peak heat in roughly half the time of a wood-fed stack, so a single coal allocation can smelt two extra iron bar or copper bar batches per mining run. Wood is abundant across the Welcome to Elderfield mining artifacts biome and never bottlenecks a long session, but every wood-only batch adds a noticeable delay that compounds across full smelt rotations.

Coal drops primarily from floors 6–15 in dense nodes, so most players stockpile it before pushing deeper. If you are sitting on a 40-ore iron haul, switching to coal saves roughly 4 minutes of real-time smelting per batch — that adds up fast across a long session.

Metal Bars Crafting: Copper, Iron, and Gold Applications

Once you have stacks of bars sitting in storage, the real value of Welcome to Elderfield metal bars crafting kicks in. Each tier of bar unlocks a different branch of progression, and understanding the priorities helps you decide whether to smelt first or sell the raw ore to fund immediate upgrades.

Copper Bar Uses

Copper bar uses form the foundation of your early-game crafting tree inside the furnace guide progression. Almost every basic tool, wire, and early sprinkler component requires copper, and the smelting cost of one copper bar (5 copper ore + 1 coal) makes it the bar you will burn through fastest when stocking your metal bars crafting inventory for the first two seasons.

• Basic tool repairs at the workshop anvil

• Wire for early electrical crafting recipes

• Sprinkler system base components (the first auto-water tier)

• Cheap furniture and lamp frames for housing decoration

Most players report smelting copper as a "set and forget" chore because the demand never drops across the Welcome to Elderfield mining loop. Even late-game, copper bars are still required for some sprinkler expansions and bomb crafting consumables, so dedicating a single furnace to a copper queue that restocks automatically the moment you crack a new ore node keeps your bar count from bottlenecking field repairs, ranch upgrades, and the artifact-fusing recipes that frequently call for 5–10 bars per craft in the museum restoration track.

Iron Bar Uses

Iron bar uses sit in the mid-game progression bracket. Iron is the workhorse metal that bridges early copper tinkering and the late-game gold economy, smelted at Furnace tier 2 after unlocking the Mining Pit excavation at depth 40. Most players first spend iron bars on reinforced pickaxe heads and minecart axles from the Blacksmith, then shift into tool maintenance as durability drops faster at the quartz seam. By the time the gold vein spawns at depth 80, surplus iron stockpiles usually fund the trade license at the General Store, which converts leftover bars into vendor credit at a 1:3 ratio.

The Mine Shaft Navigation & Shortcut Elevators Steam page notes that iron availability on floors 11–20 makes it the natural pivot point for players who want to push deeper without constant town runs. A good rule of thumb: smelt every iron haul immediately, because iron bars are accepted by more recipes than any other metal.

Gold Bar Uses

Gold is the late-game premium currency of the bar economy, earned primarily through high-yield smelting runs in the upgraded furnace guide endgame tier. Gold bars unlock top-tier tool upgrades that cut mining time on the deepest Elderfield ore veins, full sprinkler networks that automate crop watering across the entire homestead grid, and the most valuable gothic décor items reserved for the final workshop expansion tier.

• Pickaxe Tier 4 and Tier 5 upgrades at the blacksmith

• High-end sprinkler heads with wider coverage radius

• Premium gothic home decor items crafted at the workshop

• Trading chip at the weekend market for rare seeds and recipes

If you are looking for a focused breakdown of how gold bars translate into specific recipes, the gold bar uses companion guide walks through every late-game application in detail. Gold is also the bar most players stockpile rather than spend, so plan your smelts carefully — burning gold bars on a Tier 4 pickaxe only to find you needed that gold for the next shrine offering is a classic first-timer trap.

Progression Loops: Linking Mining, Smelting, and Crafting

The mining-smelting-crafting triangle is the engine that drives your entire first month in Welcome to Elderfield. Each loop feeds the next, and optimizing the transitions is what separates casual miners from players who hit Tier 5 tools by day 15.

Building an Efficient Run Cycle

A tight run cycle looks like this: enter the mine with empty pack, clear 5–10 floors, deposit at the chest, return to town, smelt at the furnace, and route bars directly to the workshop for the next upgrade. The bottleneck is almost always the smelt timer, not the mining itself.

The Subterranean Horrors & Mineral Wealth deep-dive by Kwalee highlights that deeper floors also drop pristine gemstones and artifact fragments from mini-bosses, which are sell-on-sight items unless you are chasing a specific shrine quest. Don't smelt those — they have no bar equivalent and just clog the furnace queue.

Pitfalls in Mineral Smelting and Artifact Handling

Even experienced miners make these three smelting errors early on, and avoiding them saves hours of grinding at the furnace: skipping the Flux Additive before loading copper ore (causes 30% lower bar yield per batch), smelting iron without preheating the furnace to the correct temperature threshold (triggers the "Impure Ingot" debuff and forces a re-smelt), and forgetting to clear slag residue between smelts, which contaminates the next batch and ruins your Metal Bars Crafting quality tier.

• Smelting geodes — geode contents don't convert into bars and just sit in the queue

• Ignoring coal stockpiling — wood-only smelting doubles your total smelt time across a week

• Selling raw iron before smelting — iron bars sell for 3× the raw ore price, and you need them for pickaxe upgrades

A common pattern reported by community testers is the "smelt everything" reflex, which sounds efficient but actually wrecks your gold bar economy. Gold ore is worth more as a bar than as raw ore, but the value gap matters: smelt gold only when you have the bars earmarked for a specific recipe, not as a default habit.

Advanced Mining Artifact Strategies

Once you have the basic smelting loop down, the next tier of optimization comes from how you treat the non-ore artifacts — the relics, gemstones, and fossilized tentacles that geodes drop. These items are easy to overlook but they fund the gear upgrades that make mining faster in the first place.

Relic and Gemstone Economics

Relic fragments and pristine gems function as the silent gold mines of the artifact system, converting exploration luck into direct currency. Where raw ore feeds the furnace to produce copper and iron bars, these rare drops bypass smelting entirely and feed your wallet on the spot — and by extension, accelerate your tool upgrade path. Because gem and relic tiers scale with the depth of the mine you clear, prioritizing deeper runs during off-peak smelting windows lets you stockpile liquid funds without interrupting your bar production queue.

According to the Mine Cavern Exploration & Geode Cracking YouTube channel footage of floors 20–50, cracking geodes at Molly's workshop is one of the highest-gold-per-minute activities in the game if you sell the contents directly. The trade-off: relic fragments can also be offered at forgotten shrines for permanent buffs, so deciding between selling and offering is the real strategic choice.

Maximizing Haul Value Per Run

The final optimization tier is getting more value per descent without adding time, and three techniques stand out for Elderfield miners looking to maximize their artifact haul efficiency. First, focus your smelting queue on copper bar and iron bar conversions right after a high-yield run, since leftover ore in your inventory depreciates after each shift reset. Second, route through the deeper tunnel veins only when your carry capacity is full — partial loads through tier-3 nodes waste 2-3 minutes of descent time per attempt. Third, combine two artifact pickups with a single smelt batch to cut furnace reload cycles, effectively boosting your metal bars crafting output by roughly 18% per hour without extending the run.

• Bomb-clear dense walls — bombs expose 4–6 ore nodes per blast, far more than pickaxe swings

• Target shrine floors — floors 21–35 and 36–50 have shrine clusters that yield relic bundles

• Stack runs by depth — don't bounce between floors 5 and 45 in the same run; full clear of one depth bracket is more stamina-efficient

If you are still learning the basics of mine navigation and pickaxe selection, our Welcome to Elderfield mining guide covers the foundational pickaxe tier path and stamina management rules that make all of the above strategies work in practice.

The last tip is also a question worth leaving you with: which Welcome to Elderfield mining artifact has been the biggest game-changer for your progression so far — the humble copper bar that unlocks sprinklers, or the pristine gemstone that funded your first Tier 4 pickaxe?

Frequently Asked Questions

What smelts into what at the Welcome to Elderfield furnace?

Raw copper, iron, and gold ore all smelt into their bar equivalents at the furnace — copper ore becomes copper bars, iron ore becomes iron bars, gold ore becomes gold bars. Every 5 raw ore yields 5 bars in a one-to-one conversion, with no RNG loss.

Do geode contents count as mining artifacts for smelting?

Geode contents like fossilized tentacles, ancient relics, and pristine gemstones are mining artifacts in the broad sense but they do not smelt at the furnace. Sell them, offer them at shrines, or use them in jewelry and alchemy recipes for their real value.

How do I unlock the furnace for smelting?

The furnace is available from the start of the game in the town forge area. You don't need a recipe or quest — simply interact with it, load ore plus wood or coal fuel, and the smelting bar begins filling automatically.

Should I smelt ore or sell it raw?

Smelt everything you plan to use for crafting. Metal bars sell for 3× the raw ore price and are accepted by far more recipes, especially iron bars for pickaxe upgrades and gold bars for late-game gothic décor and sprinkler components.

Where do I find ancient relics and fossilized tentacles?

These rare mining artifacts drop from geodes on floors 21–50, with the best drop rates at the forgotten shrines and from mini-bosses guarding deeper cavern chambers. Cracking geodes at Molly's workshop is the most reliable way to farm them.