 The astronauts found it unappetizing, experienced difficulties in rehydrating the freeze-dried foods, and did not like having to squeeze tubes or collect crumbs.Prior to the mission, the astronauts were also fed "low residual" launch-day breakfasts, to reduce the chances that they would defecate in flight.Several of the food issues from the Mercury missions were addressed for the later Gemini missions (1965–1966).