What can you smelt in Minecraft?

Answer 1

While smelting would generally refer to refining ore into metal, many other products can be made through a furnace.

They are:

Raw Porkchop -> Cooked Porkchop

Raw Beef -> Steak

Raw Chicken -> Cooked Chicken

Raw Fish -> Cooked Fish

Iron Ore -> Iron Ingot

Gold Ore -> Gold Ingot

Diamond Ore -> Diamond*

Lapis Lazuli Ore -> Lapis Lazuli*

Redstone Ore -> Redstone Dust*

Coal Ore -> Coal*

Sand -> Glass

Cobblestone -> Stone

Clay -> Clay Brick

Wood -> Charcoal

Cactus -> Cactus Green(dye)

*The Ores marked can only be obtained legitimately through mods, creative mode, or a pickaxe enchanted with Silk Touch. It is really not necessary to smelt these, as they can be broken by a non Silk Touch pickaxe and will drop the "refined" product. In the case of Redstone Dust and Lapis Lazuli, it is actually LESS efficient to smelt them, as breaking them will yield multiple products.