In Path of Exile’s Settlers of Kalguur league, smelting in Kingsmarch allows players to refine raw ores into refined bars. This process is managed by Smelter workers and converts basic resources into more valuable materials used for various upgrades and crafting.

Upgrading your Smelting Rank improves the efficiency and capacity of your smelting operations. Here’s how you can optimize your smelting setup:
Name: Establish Smelting. Upgrade cost: 20 Gold + 3 Crimson Iron Ore + 3 Orichalcum Ore.
Name: Can smelt Petrified Amber Ore. Upgrade cost: 100 Gold + 4 Crimson Iron Bar + 3 Orichalcum Bar.
Name: 15% increased Smelting Speed. Upgrade cost: 585 Gold + 10 Crimson Iron Bar + 8 Orichalcum Bar + 6 Petrified Amber Bar.
Name: +2 to Maximum Smelters. Upgrade cost: 1,865 Gold + 45 Crimson Iron Bar + 35 Petrified Amber Bar + 25 Wheat.
Name: Can smelt Bismuth Ore. Upgrade cost: 5,030 Gold + 100 Orichalcum Bar + 100 Petrified Amber Bar.
Name: +2 to Maximum Smelters. Upgrade cost: 8,875 Gold + 150 Petrified Amber Bar + 100 Bismuth Bar + 50 Wheat.
Name: Can smelt Verisium Ore. Upgrade cost: 13,905 Gold + 250 Crimson Iron Bar + 200 Orichalcum Bar + 100 Bismuth Bar.
Name: +2 to Maximum Smelters. Upgrade cost: 18,765 Gold + 200 Bismuth Bar + 120 Verisium Bar + 80 Corn.
Name: 20% increased Smelting Speed. Upgrade cost: 21,795 Gold + 400 Crimson Iron Bar + 150 Bismuth Bar + 100 Verisium Bar.
Name: +3 to Maximum Smelters. Upgrade cost: 27,000 Gold + 400 Orichalcum Bar + 200 Bismuth Bar + 100 Pumpkin.
Name: 25% increased Smelting Speed. Upgrade cost: 44,115 Gold + 400 Petrified Amber Bar + 250 Bismuth Bar + 150 Verisium Bar.

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Smelting is a passive activity where Smelter workers refine raw ores into refined bars over real-time. The smelting process is crucial for advancing your settlement’s capabilities and ensuring you have the resources needed for other activities.
Once the smelting process is complete, players will receive a notification and can collect their refined bars. These bars are essential for upgrading various facilities in Kingsmarch and for use in crafting high-tier items.
By efficiently managing and upgrading your smelting operations, you can ensure a steady supply of refined bars, which are crucial for advancing your settlement and enhancing your gameplay experience in the Settlers of Kalguur league.