understanding the two views with "דרך לכלוך" (coloring destructively). (Wiping one's hands on a towel from grape juice, blood, pomegranate, colored ices, etc.);
Is one allowed to drink the juices which oozed out during eating; grapefruit issues.
חסרון כיס Chesron Kis: A Place Specially Set Aside for This Item or Not?;