The Heavy Furnace represents a significant upgrade to the standard furnace in Stardew Valley, introduced in Update 1.6. This advanced version enhances the smelting process of metal ores into bars with increased efficiency.

Compared to its predecessor, the Heavy Furnace boasts the capability to process larger quantities of ore in a single operation. While initial material requirements are higher, the Heavy Furnace proves to be a time-saving investment by producing more metal bars per cycle. If you're eager to incorporate this upgrade into your farm, here's how to proceed.

Unlocking the Heavy Furnace Recipe

To access the crafting recipe for the Heavy Furnace, players must excel in Mining Mastery. Upon mastering all five skills, a visit to the Mastery Cave reveals five mastery totems, each corresponding to a specific skillset.

Upon accumulating 10,000 Mastery Points, players unlock the Mining Mastery totem, granting:

• Heavy Furnace recipe.
• Statue Of The Dwarf King recipe.
• Gem Nodes yield twice as many gems as before.

Crafting the Heavy Furnace

Once the Heavy Furnace blueprint is available, crafting it is straightforward. Gather the following materials:

• 2 Furnaces.
• 3 Iron Bars.
• 50 Stones.

Initially, players obtain the regular furnace recipe from Clint, the Blacksmith, after acquiring 1+ Copper Ore. This basic furnace demands 20 Copper Ores and 25 Stones, obtainable through mining copper nodes and rocks.

Utilizing the Heavy Furnace

Operating the Heavy Furnace mirrors the standard furnace process. Utilize coal as fuel to smelt ores or quartz efficiently. Each smelting operation necessitates three units of coal, regardless of the material or duration.

Refer to the table below for a comprehensive list of items compatible with the Heavy Furnace, their processing times, and respective sell prices.