More Than Just a Meal
For astronauts confined to a capsule, food is about much more than sustenance. It's a crucial factor for mission success, impacting both physical health and psychological well-being. A carefully curated menu provides comfort, boosts morale, and maintains
the crew's peak performance. Scientists must account for the unique physiological changes that occur in space, such as altered taste perception and the risk of bone density loss. Therefore, every meal served in zero gravity is a product of intense scientific research, designed to be both delicious and perfectly tailored to the astronauts' needs.
The Science of Zero-Gravity Dining
Eating in space presents a unique set of challenges. In a microgravity environment, crumbs and stray liquid droplets don't fall; they float, posing a serious risk to sensitive equipment. This means all food must be low-fragmentation. The Mysuru-based Defence Food Research Laboratory (DFRL), a DRDO facility, is at the forefront of developing these specialized meals. The food is prepared to be lightweight, low-volume, and easy to consume, often in paste or semi-solid forms within special packets. Techniques like thermo-stabilization (heat processing to kill microbes) and dehydration are used to ensure a long shelf life without refrigeration. Astronauts will also use specially designed containers and straws to drink liquids, preventing any spillage.
A Menu with an Indian Heart
While international space missions have their own standard menus, India's Gaganyaan crew will dine on familiar flavours. The DFRL, in collaboration with ISRO and the ICMR-National Institute of Nutrition (NIN), has developed a diverse menu that caters to the Indian palate. The offerings include both vegetarian and non-vegetarian options, ensuring astronauts feel connected to home. The menu features items like vegetable biryani, chicken katti rolls, moong dal halwa, potato paratha, and sambar chawal. Even comfort foods like khichdi and classics like idli have been re-engineered for space travel. These meals are designed to be mildly spicy, with extra spice sachets available for those who prefer more heat.
Meeting Strict Nutritional Demands
An astronaut's diet needs to be precisely calibrated. The human body requires different nutritional support in space; for instance, there's an increased need for Vitamin D and careful management of sodium intake. The food for Gaganyaan astronauts is designed to provide around 2,500 calories per day, packed with essential nutrients, proteins, and minerals while being low in fat. The ICMR-NIN is conducting studies to understand how the body's needs change in microgravity, monitoring everything from gut health to biochemical parameters to fine-tune the diet. This ensures that the crew remains healthy and resilient throughout their mission, combating the physiological stresses of spaceflight.
From the Lab to the Launchpad
The process of creating this space-ready cuisine is meticulous. Dozens of dishes are developed and then undergo review by both ISRO and the astronauts themselves to finalize the selection. DFRL, which has a long history of creating ready-to-eat meals for the armed forces, has adapted its expertise for this new frontier. Once the menu is finalized, the lab will produce enough food to last the entire mission, including an emergency supply. The food is packed in special lightweight pouches, and the astronauts are also provided with food warmers to enjoy a hot meal, a simple but significant comfort in the cold expanse of space.
