Sprinkle gelatin over the cold water and set aside to soften. Peel the kiwifruit and blend in a food processor or blender until pureed. Be careful not to over-process; the black seeds will break and change the color of the puree.
Add the gelatin mixture to the kiwi puree. Heat mixture to about 110°F; do not overheat. If mixture gets too hot, pull off heat and stir constantly. Continue to stir until all gelatin is dissolved. Keep covered in a refrigerator.