Copper Bar is obtained by smelting five Copper Ore along with one piece of Coal in a furnace. This process takes 30 in-game minutes. The resulting bar is a crafting ingredient used to create various items and tools, such as the Cherry Bomb, Copper Axe, and Copper Hoe. It's also required for upgrading tools, constructing buildings, and can be sold for a profit. The bar's utility makes it a fundamental resource for progression and development.
The item ID for Copper Bar is 334
This ID will work on PC/Mac (Steam), PS4, PS5, XBOX One, and Nintendo Switch.
Spawning items in Stardew Valley is a little unsual and is not done with commands. You will need to utilize what is called a cheat to set your character's or animal name to the item id. To do this you cannot use just the item id, you will need to surround the item id with brackets. Ex. [334]
Spawning Using the Animal MethodTo spawn Copper Bar while using an animal, you will need to head over to Marine's Ranch and purchase an animal. Once you have have an animal chosen, name the animal with the item id with brackets like this [334] and you will receive the Copper Bar item. This method can be done using an existing character and is convenient but will cost some gold every time you want an item.
Spawning Using the Character MethodTo spawn Copper Bar while using a character, you will need to create a new character and name it with the item id with brackets like this [334]. You will then receive the Copper Bar item when you speak to a villager. This method is easy and free but cannot be performed on an existing character and you will be stuck with that name unless its edited.