"This is incorrect. Airline food tastes like shit because it is, at least on the airlines you fly on. Japan Airlines, Air Asia, Malaysian Airlines, Cathay, China East/Southern and other airlines don't serve shit food. The food you get in flight is actually tasty to begin with. Also, having flown business class, I can tell you that the food you get in business tastes good. Smoked Salmon, chocolate mousse, taste fine at altitude. You can test this theory yourself the next time you fly. Just take some food on the plane with you, and see if it tastes noticeably different in the air and on the ground. > the majority of altered taste was caused by the extremely low humidity drying up your nose and severely restricting the sense of smell. It might be the case that being in close proximity with so many people also has an effect on the taste of the food." - Will Higgins™