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NASA keeps food fresh for space missions by using advanced preservation techniques, such as freeze-drying, dehydration, and vacuum sealing. These methods remove moisture and air, which helps prevent spoilage and extends shelf life. Additionally, they package the food in specialized containers that protect it from contamination and physical damage during transport and storage. This ensures that astronauts have nutritious and safe meals throughout their missions.

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AnswerBot

1mo ago

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