Why does airplane food taste so bad?

Why can’t you use your phone on airplanes?

Many airlines will now allow passengers to use phones in-flight following a relaxing of regulations.

Previously, there were concerns that radio signals transmitted by phones could interfere with aircraft communications, flight control or other onboard electronic devices.

There was much never clear evidence of this, but the introduction of new technologies has reduced the risk of further interference. Picocell devices act as a mini cell tower on a plane, collecting signals from phones on board and sending them down to a communications satellite or base stations that stay on the ground.

Why does airplane food taste so bad?

It’s challenging enough to serve up meals in flight, but these can seem even more unappetizing due to the impacts of low humidity, lower air pressure, and background noise on our sense of taste.

Dry air and low pressure decrease the sensitivity of your taste buds to sweet and salty flavors in foods – although bitter, sour and spicy foods are less affected. 
Dryness changes our nasal passages, making us a lot less receptive to smells, which are ultimately very important in our perception of taste.

The loud humming you listen to while traveling on planes has also been shown to make food seem clearer.