How to Smelt Copper, Iron, and Gold in Stardew Valley
It’s important to note that besides copper, iron, and gold, you can also smelt Quartz and Iridium into bars. Before you’re able to smelt anything in Stardew Valley, though, you’re going to have to craft the Furnace for your farm. This will cost you 25 stones and 20 copper ores. You have to spend ores to get bars, you know the saying!
Once you have one (or however many you deem appropriate for production) set in your farm, you just have to be holding five of whatever ores and have coal in your inventory in order to smelt. Go up to the furnace and interact with it while holding the ores and in due time you will have yourself a bar smelted. Copper bars take half an hour, iron bars are two hours, gold bars are five hours, refined quartz are one and a half hours, and an iridium bar is eight hours. This is why it might be smart to invest in multiple furnaces for the sake of production.
There you have it, all the bars you can want to craft up a storm! Check out our Stardew Valley wiki guide for more help with the game.