Barrel

Barrels are tile entity storage blocks generating in villages.

Natural generation
Barrels can generate naturally in fisher cottages in plains, savanna, and snowy tundra villages.

Usage
Barrels have a container inventory similar to a single chest. They can be filled by droppers and both filled and emptied by hoppers. When broken, barrels drop the contents of the container and the barrel item itself.

Block entity
A barrel has a block entity associated with it that holds additional data about the block.