Li Yu saw soap pod trees in the garden, an old friend of the Chinese people on another plane of existence.
Being able to cook them for food and use them as medicine were just bonuses; the most useful aspect of soap pods was their ability to replace soap to some extent.
As a cleaning agent, they were cheaper than using pig pancreas.
With the advent of the Double Rest Sect's bathhouses about to begin operation, Li Yu planned to introduce the Romans' bathing culture to the Bratis Continent to improve the personal health of the local natives.
However, dry scrubbing alone wasn't quite appropriate; encountering soap pods was a stroke of luck, for these could be used not only for washing people but also for laundering clothes, causing less damage to fabrics than plant ash.
Li Yu planned to plant them on a large scale in Green Field as soon as he obtained the seeds.
