Why can't fries be made in the universe?

Researchers finally know why astronauts on the International Space Station (ISS) cannot make chips or fritters in general like on Earth.

When a Russian astronaut revealed, what he craved on the ISS was potato chips, Greek researchers tried to fulfill this wish. Their initial tests, under the auspices of the European Space Agency (ESA), reveal that it is possible to process potato chips in a gravity-weighted environment three times higher than normal gravity on Earth. .

Convection of liquids during frying determines the crispy crust of potato chips.

According to research reports, scientist Thodoris Karapantsios and colleagues used a giant centrifuge to fry potatoes in a super-gravity environment.

They found that, in a gravitational environment three times the gravity on Earth, the potato chips formed a perfectly crispy crust in time equal to half the normal amount. These special chips also have the same flavor as processed in the usual way.

However, in a recent article, the authors stated, despite the initial success, the fries will actually be soggy, not as crisp as usual if processed in a weightless environment, on ISS station. This is because convection plays an essential role in frying / frying.

The way fluids, such as oil and water, flow affects the speed with which food is heated. On Earth, the hot liquid at the bottom of the pan floats because it is not as heavy as the cooler liquid above.This convection phenomenon does not occur in a weightless environment (in the universe), making potato chips soggy and without crispy crust.

Researchers recommend, in the universe, it is best to boil potatoes, instead of frying / frying.