After the astronauts came back, there were more than 20 kinds of main and non-staple foods for the first meal. There are noodles, steamed bread, millet porridge, vinegar shredded potatoes, vinegar cabbage, mustard tuber, Sichuan sausage, cucumber, tomato and watermelon. ...
Living in orbit, drinking water safety is very important. Astronauts should take samples of water for microbial detection every month. It's a bit like we usually do microbial experiments, put on masks and gloves, filter water samples and culture media, leave microorganisms and nutrients on the filter membrane, observe the collected microbial samples and check whether the water we drink in space is clean.
Like ordinary food, space food needs to be rich in nutritional value and easy to digest and absorb. In the special environment of space, it will not increase the burden on the astronauts' bodies.
The special pressure environment in space will lead to the change of human taste and even taste. Space food needs to ensure the appetite of astronauts as much as possible.
Space weightlessness, space food needs to be eaten in zero gravity environment. Avoid food scraps flying around.
According to the introduction of the Space Nutrition and Food Engineering Laboratory, Shenzhou XIII carried 127 kinds of space food, including staple food, non-staple food, beverage, condiment and functional beverage. Among them, non-staple foods include animal meat, poultry meat, vegetables, etc., which are rich in nutrition and the taste can also be adjusted with seasonings. Moreover, considering the New Year's Eve of this mission, we also prepared a heated and ready-to-eat jiaozi for the astronauts, which has been processed on the ground for the Chinese New Year in the space station and can be reheated when eating.