The outside of the mortar is just as rough, as one suspected at the sight of the photo, the inside is fine but worked far.
Cleaning is still no problem, hot water and a washing-up brush rich. (If you do not pounds tablets so - then you should rinse it definitely with boiling water, will you still use it for food purposes!)
With his gray-flecked Natural look of mortar fits into every modern kitchen, but would certainly also act on a medieval market is not out of place!
Tip: People with rather big hands probably do with a longer plunger,
as the supplied, easier.