✚ gCal ✚ iCal Cultures and rennet are added to milk. The mixture is left overnight. In the morning, the whey is separated from the solids. The solids are scooped out of the tank into lined forms. This encourages the whey to drain. Quark is a high moisture product so it needs to be handled carefully to prevent contamination. The drained Quark is pumped into a special filling machine. Once in the filling machine, everything is mechanized. This is an FDA requirement for fresh cheeses. Once filled, the containers are automatically sealed and capped. Pallets of Quark are shipped around the US, but the biggest market is the East Coast.