CERAPOTTA is a permanent ceramic filter that can be used again and again, without paper filters. The porous special ceramic filters the coffee gently in a natural way over the entire wall. Made in Japan using traditional techniques, it has tiny five micron pores that allow for pure flavor. The handy filter offers markings for 1 to 4 cups and comes with a stand that attaches directly to cups or pots with a maximum opening of 8.5 cm in diameter. Not dishwasher safe. Cleaning is done with water or boiling with water and soda.