What kind of finish is the "uncoated" (mudojang) on the hinoki coaster mentioned in the description?

Uncoated means that it is finished in its natural solid wood state without applying chemical coatings such as varnish or urethane to the exterior. The hinoki coaster included in the sake cup set from HORIE TOUKI is also manufactured uncoated, without any additional paint on the surface^[1].

Generally, wooden tableware or coasters have a transparent film applied to their surfaces to prevent contamination and moisture. However, with hinoki (cypress), the wood's unique scent and soft grain are fully brought to life on the surface only when there is no coating film. Because the wood continues to breathe, it offers the advantage of allowing a subtle wood scent to naturally permeate when a sake cup is placed on it.

However, because there is no surface protective layer, if water or sake comes into contact with it and is left for a long time, stains may remain or deformation may occur. After use, it is recommended to manage it by wiping away moisture with a dry cloth without leaving it wet, and drying it in a well-ventilated, shaded area.

hmmm, by leaving out the convenient protective coating, it is a choice that allows you to encounter the original texture and fragrance of the wood with your fingertips during the time you tip your cup.