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Stardew Valley 25 Ore Batch Smelting Rules
Mechanics / 25 ore, 3 Coal, and 5-6 bars
For ore, Heavy Furnace consumes 25 ore and 3 Coal per run. Each batch has an equal chance to output 5 or 6 bars, so the average batch beats five ordinary furnace runs on both ore and Coal.
Facts and route notes
Category: Mechanics
Focus: 25 ore, 3 Coal, and 5-6 bars
Checklist: Use Heavy Furnace only when at least 25 matching ore and 3 Coal are ready. Expect either 5 or 6 bars from each ore batch rather than a fixed output. Use ordinary Furnaces for leftovers under 25 ore so small stacks do not sit idle.
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