During the 1950s, the Philippine government, with the help of the Americans, brought in a more resistant variety of coffee. It was also then that instant coffee was being produced commercially, thus increasing the demand for beans. Because of favorable market conditions, many farmers went back to growing coffee in the 1960s. But the sudden proliferation of coffee farms resulted in a surplus of beans around the world, and for a while importation of coffee was banned in order to protect local coffee producers. When Brazil was hit by a frost in the 1970s, world market coffee prices soared. The Philippines became a member of the International Coffee Organization (ICO) in 1980.