Caviar is a luxury product obtained from sturgeon fish kept in a fish pond. Once the pond reaches a high enough population, players can harvest the caviar from the sturgeon roe. It's a highly valuable item that can be sold for a significant profit or used as an ingredient in some recipes. Additionally, it's one of the few artisan goods that can be aged in a preserves jar to increase its quality and value.
The item ID for Caviar is 445
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. [445]
Spawning Using the Animal MethodTo spawn Caviar 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 [445] and you will receive the Caviar 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 Caviar while using a character, you will need to create a new character and name it with the item id with brackets like this [445]. You will then receive the Caviar 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.