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Coffee in Space: Astronauts' Brew

Space Science

Astronauts on the ISS rely on caffeine, consuming coffee from pouches. The 'space cup' allows for a mug-like experience in zero gravity. Water is recycled, and freeze-dried coffee is used. The amount needed for a Mars mission is a future question.

Astronauts Coffee Space Exploration
10 Questions Medium Ages 10+ Oct 24, 2025

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About this Study Set

This study set covers Space Science through 10 practice questions. Astronauts on the ISS rely on caffeine, consuming coffee from pouches. The 'space cup' allows for a mug-like experience in zero gravity. Water is recycled, and freeze-dried coffee is used. The amount needed for a Mars mission is a future question. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Coffee in Space: Astronauts' Brew study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 How many hours a day do astronauts typically work on the ISS?
  • A 8-10 hours
  • B 12-14 hours
  • C 6-8 hours
  • D 10-12 hours
2 About how much caffeine does the average astronaut consume per day?
  • A 200 milligrams
  • B 50 milligrams
  • C 100 milligrams
  • D 150 milligrams
3 What is the equivalent of 100mg of caffeine in common beverages?
  • A One cup of coffee
  • B Two cups of tea
  • C One can of energy drink
  • D All of the above
4 How do astronauts typically drink coffee on the ISS?
  • A From a mug
  • B From a glass
  • C From a plastic pouch through a straw
  • D From a thermos
5 Who invented the zero-gravity cup?
  • A Neil Armstrong
  • B Buzz Aldrin
  • C Don Pettit
  • D Yuri Gagarin
6 What does the space cup rely on to keep liquid in place?
  • A Magnets
  • B Gravity
  • C Surface tension and physics
  • D Velcro
7 What is unique about the shape of the space cup?
  • A It is spherical
  • B It has an angled channel
  • C It is made of glass
  • D It is foldable
8 Where does the water for coffee on the ISS come from?
  • A Imported from Earth
  • B Collected from rain
  • C Recycled liquids and air moisture
  • D From a nearby asteroid
9 What form of coffee is used on the ISS?
  • A Ground coffee beans
  • B Instant coffee
  • C Freeze-dried coffee grounds
  • D Coffee syrup
10 What is a big question for the future regarding coffee in space?
  • A The best coffee brand
  • B How much coffee for a Mars mission
  • C If coffee affects sleep in space
  • D The ideal temperature for space coffee
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