Astronauts can eat and drink pretty much anything as long as it doesn't create crumbs (crumbs would float around and could clog the air filters). Space food is prepared on Earth and stored in sealed, re-heatable pouches.
Liquids are drunk from straws or pouches. In free-fall, free liquids will collapse into spheres because of surface tension, but can be messy if the spheres are broken up. NASA has a video of a shuttle astronaut releasing a "ball" of water and then catching it in his mouth.
straws
water
10
they have a secret opening in the back of their helmets and they eat out of there.
eat bread
no
As there is less or no gravity in space astronauts take closed food packets with them to the space . These food packets provide vitamins and minerals for astronauts in space to live .
They eat while inside the space station or shuttle. Bars used to be positioned inside the spacesuit where the astronaut could take a bite at will, but they are no longer used as astronauts preferred to eat later. They do however have a drink bag and tube from which they can suck water. Spacewalks last up to seven hours and astronauts work hard during this time, so it is essential that they drink.
Astronauts eat freeze dried food
they throw their waste into space . :D
Astronauts eat and drink in the space shuttle by using special food and drink packages that are designed to be rehydrated or warmed up using the shuttle's onboard systems. They use straws and squeeze bottles to consume liquids, and the food packages are usually pre-cooked and require minimal preparation. Utensils are also specially designed to prevent food from floating away in the microgravity environment.
yes they can