First they freeze dry it, and then they vacuum seal it in a special bag.
Space food is packed into frozen parcels. You have to heat it first to eat it.
dried vacuumed packed food
NO. Space food is the same sort of food you and I eat, except that it's vacuum-packed and bottled, sometimes put into a paste to make it easy for the astronauts to eat.
Yes, well first you hydrate it then you eat or cook it in a microwave or oven.
The first food consumed in space was applesauce, eaten by astronaut John Glenn during the Mercury-Atlas 6 mission in 1962. The applesauce was packed in a toothpaste-like tube for easy consumption in microgravity.
Packed to the Rafters - 2008 Space Junk 2-18 is rated/received certificates of: Australia:PG
Astronauts take vacuum packed food into space so that it is preserved. Although, if you think about it, this is quite strange because there is no atmosphere in space and therefore how can it go off ? Anyway, I digress, for lunch an astronaut would eat Starbucks.
they eat the packed food
In 1962 John Glenn ate applesauce packed in a tube, and sugar tablets in water to demonstrate that people could eat, swallow, and digest food in a weightless environment.
To survive in a space shuttle, you would need a constant supply of oxygen, food, and water. You would also need protection against extreme temperatures, radiation, and microgravity. Additionally, communication equipment and a way to manage waste are essential for a successful space mission.
Density
Space food was invented during the early 1960s which were semi-liquid and could only be eaten by sucking through a straw. By 1965, the food was more palatable with wider variety such as turkey bite and butterscotch pudding.