Copper is hygienic
One of copper's most outstanding characteristics is in respect of hygiene. Copper pipes do not release any unknown substances. Nor any nutrients that under certain circumstances might promote the growth of microorganisms.
What is more, copper does not allow gases to diffuse through the tube wall - this means that bad smells or other disturbing influences cannot enter the system and impair the quality of the water. The result: first rate drinking water at any time, all through the house.