The term 'Folgers Concern' is a reference to the American coffee company, Folgers. Founded in 1850 by James A. Folger, the company has become one of the most popular coffee brands in the United States. The crossword solution for this term is 'SWING, ' which refers to the company's signature roasting process. This process involves slowly roasting the beans over an open flame, which gives the coffee its unique flavor and aroma.