Chest of Preserving

From Waterdeep: Dungeon of the Mad Mage, page 139.

Description
Wondrous item, common.

Food and other perishable items do not age or decay while inside a Chest of Preserving. The chest is 2 1/2 feet long, 1 1/2 feet wide, and 1 foot tall with a half-barrel lid. The chest has a lock, which can be picked with thieves' tools and a successful DC 15 Dexterity check. Smashing the lock or any other part of the chest renders it nonmagical.