Clarification and stabilization of wine Organic compounds used as fining agents are generally animal based, a possible cause of concern to vegans. The most common organic compounds used include egg whites, casein derived from milk, gelatin and isinglass obtained from the bladders of fish. Pulverized minerals and solid materials can also be used, with bentonite clay being one of the most common, thanks to its effectiveness in absorbing proteins and some bacteria. Activated carbon from charcoal is used to remove some phenols that contribute to browning as well as some particles that produce "off-odors" in the wine. In a process known as blue fining, potassium
Country Joe and the Fish was responsible for coining the group's name—a reference to Josef Stalin and to Mao Zedong's description of revolutionaries as "the fish who swim in the sea of the people". McDonald, who had recording experience, began utilizing Arhoolie Recording Studios to record four songs split equally between the band and a local folk musician, Peter Krug. It was during this time at Arhoolie Records that Country Joe and the Fish's folk sound and political protest prowess—an amalgam of their own Guthrie-influenced material and their folk music roots—began to emerge. The band's side of the EP featured two originals by McDonald, an