: You can manually deconstruct unwanted consumables obtained from crates—such as potions, poisons, and experience scrolls—in the Gem Extraction menu.
How to get free Crown Crate items // Beginner's Guide to ESO
Crown Gems are spent within the under the Crown Crates tab. Each crate "season" has its own dedicated rewards list where you can use Gems to buy:
: Watching official Elder Scrolls Online (ESO) Twitch streams with active drops can earn you "Ouroboros" Crown Crates. These often contain common items that can be extracted for a small amount of Gems. Where to Spend Them
: If you receive a collectible (like a mount, pet, or costume) that you already own from a Crown Crate, it is automatically converted into Gems.