The smart way to keep butter soft and safe is with a butter keeper--stoneware, porcelain, or marble.

A butter keeper keeps your butter soft and fresh for 30 days without refrigeration.  No more hard butter.  Simply fill the bell portion of the butter keeper with butter.  Add a little water to the cup portion and insert your butter into the cup holder.  The water in the butter keeper seals the butter and keeps it air tight.