Food eaten by astronauts in space
The nutritional value of space food is relatively high, but they must eat according to the recipes prepared by ground nutritionists for them.
Space food is generally dehydrated food. Before eating, you need to put the food in a container, inject a certain amount of water into the container with a syringe, and then heat it in the oven.
Astronauts can't talk while eating, because talking while eating will make food crumbs chewed in their mouths fly out of their mouths and float to restaurants or living areas. Astronauts can easily choke on their lungs if they inhale into the nasal cavity without paying attention.