Breathing Soil has the effect of drying and deactivating. If a storage cellar is built with Breathing Soil bricks, anything living placed inside will quickly dry out and deactivate, preserving it for a long time.
However, it also has a drawback. In places where the breath of death is too thin, Breathing Soil becomes ineffective easily.
To address these characteristics, silver coin developed various Breathing Soil pellets and blocks as desiccant preservatives. They can be placed in wardrobes or food boxes to repel insects, dry, sterilize, and deactivate with excellent results.
Most importantly, they are consumable. Once they lose effectiveness, you have to buy new ones, making it a recurring profit.
But all these effects are aimed at the living. For the Undead, Breathing Soil has even more applications, such as "moisture removal and anti-decay."