A yw dŵr yfed o'r cwpan a drosglwyddir yn niweidiol i'r corff?

There will be no impact, because our coatings and inks have passed sanitary inspections and proved to be non-toxic and harmless, so you can use them with confidence.  Sublimation of an element or compound is a transition from the solid to gas phase with no intermediate liquid stage. Sublimation is a phase transition that occurs at temperatures and pressures below the triple point.