Gelatin The fillings of both are made by combining ground pork with gelatin cubes, and in the process of cooking, the gelatin melts, creating a soupy interior with a characteristic gelatinous stickiness. Gelatin is used for the clarification of juices, such as apple juice, and of vinegar. Isinglass is obtained from the swim bladders of fish. It is used as a fining agent for wine and beer. Besides hartshorn jelly, from deer antlers (hence the name "hartshorn"), isinglass was one of the oldest sources of gelatin. The consumption of gelatin from particular animals may be forbidden by religious rules or cultural
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