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New experiment to create fresh-baked bread in space

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12 June 2017

A new space experiment to bake bread will "let the bread rise" - literally. Slated to launch to the International Space Station in 2018, 'Bake In Space' will test a specially-devised dough with a microgravity oven to bake bread in orbit for the first time in history.

"Baking where nobody baked before," the team behind the Bake In Space experiment quipped. "Bake In Space seeks to address the scientific and technical challenges relating to the production of fresh bread in space."

It was 50 years ago that US astronauts got a congressional reprimand after astronaut John Young smuggled a corned beef sandwich aboard the Gemini 3 space mission in 1965. The snack almost caused a disaster as the crumbs flew everywhere in the microgravity.

It could have got into their eyes or into the electrical panels, which had the potential to trigger a fire.

After the mission, a congressional hearing was called in where the astronauts were reprimanded for their irresponsibility. Since then, breads have been strictly banned in the ISS.

NASA's early solution after Mercury and Gemini crews smuggled deli sandwiches to space was to pre-cut their bread into bite-size cubes and coat each in gelatin to keep any crumbs contained. Later, during the space shuttle era and continuing to today on the space station, tortillas have taken the place of loaves as the bread-product of choice.

But now International Space Station (ISS) astronauts could be treated to the smell of freshly baked bread in space. 'Bake In Space' is a Germany-based company, set to create a new oven and dough mixture that can be taken aboard ISS.

''As space tourism takes off and people spend more time in space we need to allow bread to be made from scratch,'' Sebastian Marcu from 'Bake In Space' told New Scientist.

Led by a group of scientists, engineers and science communicators, including former shuttle astronaut Gerhard Thiele, Bake In Space is not just about adding to the space station crew's menu, but meeting the needs and desires of future astronauts as spaceflight opens to more people.

The Bake In Space experiment will try to produce "typical" weekend German bread rolls using a compact, low-energy convection (or possibly vacuum) oven and a special dough that produces a palatable, but crumb-free bread.

"The first thing we need for a sandwich is a piece of bread. Well, up here, we don't have bread like you have on Earth, but we have tortillas," stated astronaut Shane Kimbrough, Expedition 50 commander, in a video recorded aboard the space station earlier this year. "So we use tortillas a lot for our sandwiches."

The difficulties with developing a fresh bread for space are not limited to mitigating the production of crumbs. Bread that is tough and chewy will not produce crumbs but also won't be to most astronauts' tastes.

 "This is the biggest challenge," Florian Stukenborg with the research firm TTZ Bremerhaven told New Scientist.

Bake In Space is about more than the taste of the bread, but also how psychologically-filling the rolls can be.

 "Besides [being] a source for nutrition, the smell of fresh bread evokes memories of general happiness and is an important psychological factor," the project website states. "It is a symbol of recreational time and procedure down on Earth."

Similar dual-purpose goals were associated with Veggie, a plant chamber used to grow fresh produce on the station, and the Italian ISSPresso microgravity coffee maker tested on the orbiting laboratory in 2015.

 Bake In Space, based in Bremen, Germany, is scheduled to launch to the space station during "Horizons," Alexander Gerst's second science mission on the complex as an ESA (European Space Agency) astronaut.

In addition to making bread on the space station, the Bake In Space team is also planning to experiment with creating the batter for sourdough in orbit, which could then result in space-born bread going on sale on earth.





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