coffee bean vs demitasse

coffee bean

noun
  • The seed of a tropical plant of the genus Coffea. Prepared by drying, roasting and grinding for making the beverage coffee. 

demitasse

noun
  • The cup in which this coffee is served. 

  • A small cup of strong black coffee. 

How often have the words coffee bean and demitasse occurred in a corpus of books? (source: Google Ngram Viewer )