The Jar
ItemRebirthUnlocked
activeGame ID 290★★★★
How do you unlock The Jar?
Verified starting unlockSource data confirms that no unlock is required.
When at full health, up to 4 extra Red Hearts can be stored in The Jar. Activating drops the stored hearts on the ground.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking The Jar leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13