Wikipedia
Arfé
Arfé is the creation of artworks by staining with coffee.
The term was coined by Puerto Rican artist, Francisco Rivera Rosa, describing his paintings of using coffee. The word comes from a combination of the words art and café. Thus, arfé is a portmanteau. It is sometimes spelled arfe and pronounced like "barf" by its critics. This art is also known as simple as ' Coffee Painting' or 'Coffee Art'.
Artists like Mira Chudasama, Amita Chudasama, Andrew Saur, Sarah Thomas and Angel Sarkela-Saur also paint with coffee.