Bag of Preserving

This bag, at first, appears to be a Bag of Hold. And it functions as such, too. However, if one were to drop a pinch of salt and two copper pieces into the bag immediately before closing it, one would find that any and all organic goods are perfectly preserved for as long as the bag stays closed. Once the bag is opened again, it reverts to being an ordinary Bag of Holding until the material components are dropped into the bag again.

Bag acts as a conduit and container for the Gentle Repose spell when closed.