What Do Astronauts Drink In Space?

In the vast expanse of space, astronauts quench their thirst with a variety of beverages such as water, coffee, tea, fruit juices, and powdered drink mixes. The fluids are consumed in specially designed pouches and tubes to overcome the challenges posed by zero gravity.

Let’s delve a little deeper. Astronauts can’t drink out of cups or bottles like us, because in zero gravity, the liquid would float around and cause chaos! Therefore, they use specially designed pouches and drink tubes. Beverages, often dehydrated, come in these sealed pouches and astronauts add water to it through a needle valve from the station’s water supply. They then sip it through a built-in straw which has a clasp to prevent the liquid from escaping.

You might be wondering where the water comes from. Well, it’s fascinating. In space, water is mainly recovered by recycling astronauts’ sweat, breath and even urine! This recycled water is purified and tested frequently to ensure it’s safe for drinking. So, astronauts’ drinks are not just providing hydration; they’re also a shining example of effective recycling and resource conservation.

The Assortment of Astronaut Beverages

In space, astronauts have a wide range of beverages to choose from. This includes plain water and a whole array of flavored drinks such as coffee, tea, lemonade, and orange juice. However, these aren’t your typical grocery-store varieties, these are special freeze-dried mixes, able to endure the conditions of space travel.

  • Water: The most fundamental drink, and it often serves as the base for rehydrating the other beverages.
  • Coffee and Tea: Astronauts can enjoy a warm cup of coffee or tea, especially to kick-start their day.
  • Flavored drinks: Lemonade, orange juice, and other fruit-flavored drink mixes are also part of the beverage assortment.

All these drinks come in a freeze-dried format, allowing for convenient storage and increased shelf life. The freeze-drying process involves removing water from the drinks, reducing their weight and volume significantly which is vital for space travel where every ounce counts. When ready to drink, astronauts simply add water to these dried mixes to rehydrate them, turning them back into refreshing beverages, just like magic!

The Process of Consuming Drinks in Space

Drinking in a zero-gravity environment is a whole different ball game compared to having a sip back on earth. Preferences like water, coffee, or lemonade don’t change, but the method of drinking surely does. Astronauts consume their drinks from vacuum-sealed pouches using a pressurized hose and a straw, a technique designed to prevent liquids from floating around in the spacecraft.

Here’s how the whole process works:

  • The drink, whether it’s water or a rehydrated beverage, is first added to vacuum-sealed pouches. These pouches are engineered to withstand the harsh conditions of outer space.
  • These pouches are affixed with a pressurized hose where water from the station’s supply is injected to rehydrate the freeze-dried beverage mixes.
  • To drink, astronauts pierce the pouch with a straw. This isn’t just any straw though! It has a special clasp that prevents the liquid from escaping due to zero gravity.

So while this process might be quite different from simply pouring a glass of water on earth, it’s a perfect solution to stay hydrated while floating among the stars.

Recycling Water in Space

In the fascinating realm of space exploration, resource conservation is paramount. Specifically, recycling water is a significant aspect of life on the International Space Station (ISS). It might sound a little odd, but yes, astronauts drink recycled urine among other things. It’s all part of a sophisticated and meticulously maintained system to conserve water.

  • The Recycling Process: The ISS has an advanced water recovery system that collects and filters all wastewater including sweat, breath condensation, and yes, urine. This water goes through a comprehensive recycling process, including distillation and oxidation, to remove contaminants and microscopic organisms to ensure its safety for consumption.
  • Safety Measures: The recycled water is tested regularly to ensure it meets the stringent safety standards set for drinking water. This high-tech purification process ensures the water is as clean, or even cleaner, than what most of us have in our taps back at home.

So while the thought of drinking recycled urine might make some squirm, it’s a practical necessity in space. Through stringent processes and safety measures, astronauts can be assured that their water is clean and safe to drink. It’s yet another marvel of human innovation, facilitating life beyond our blue planet.

If you would like to learn more about what it’s like to live in space check out our article on why nutrition and exercise is important in space.


In the vastness of space, astronauts have ingeniously elevated the mundane act of drinking water into a complex, yet fascinating process. From a diverse range of freeze-dried beverage options like water, coffee, tea, and juices, to the unique method of consuming these drinks via vacuum-sealed pouches and high-tech straws, life in zero gravity is anything but ordinary.

Perhaps the most impressive aspect is the water recycling system on the International Space Station. Recycling not just sweats and breaths but even urine, this system pushes the boundaries of resource conservation, ensuring a sustainable supply of clean, safe water for our space explorers.

In the end, the next time we take a sip of water on Earth, let’s remember the astronauts floating in the cosmos, sipping their recycled water, and raising a toast to the marvels of space-age technology! Here’s to pushing the final frontier, one sip at a time.

Featured Image Source: NASA