Stash is a type of permanent-storage Loot Container in Outward. They can be found in each of the player houses in the major Cities.
(3 Brother's DLC required 2/22/2023) In the Definitive Edition, their contents is shared between all locations, items placed in a stash in one location will be accessible from any other location. During online play, characters will still access their own stash when opening a stash in another player's house.
Players can use Stashes to store items permanently. Food items placed in a Stash will not decay unless you stand close to the Stash. In Definitive Edition, food items do decay in the Stash regardless of your location.
Upon first opening, Stashes will contain a few random low to medium level items related to the current region.