Catering at Altitude: Why Food Tastes Different in the Air

Food tastes different in the air because the cabin is dry, pressurised to the equivalent of a mountain town and, on many aircraft, noisy. Together these blunt the perception of salt and sweetness and dry out the nose, which carries much of what we experience as flavour. Private catering adapts to that. Meals are ordered from specialist caterers, cooked on the ground, chilled and finished on board by the crew, within the limits of the galley the aircraft actually has.

What happens to taste at altitude

• Lower pressure. Certification rules allow a cabin altitude of up to 8,000 ft in normal operation, and airliners commonly cruise with cabins between about 5,000 and 8,000 ft. The newest long-range business jets are much lower; see our article on cabin altitude.
• Dry air. Cabin humidity is typically very low, often below 20 per cent. Dry nasal passages pick up aromas less well.
• Noise. Background noise competes for attention and, in laboratory work, changes how some tastes are perceived.

Two pieces of research are often cited. Tests commissioned by Lufthansa and carried out by the Fraunhofer Institute for Building Physics, in a low-pressure chamber fitted with a section of aircraft cabin, found that salty and sweet tastes were perceived less intensely under simulated flight conditions, while fruity aromas and acidity held up better. Tomato juice, which tasted fruitier in the chamber, became the famous example. Separately, a 2015 laboratory study at Cornell University found that loud noise at around the level of an airliner cabin suppressed the perception of sweetness while enhancing umami.

Business jet cabins are generally quieter than airliners, and the latest have much lower cabin altitudes, which may soften these effects. No published study has measured them on business jets, so the sensible assumption is that the palate is still somewhat dulled.

How caterers and chefs adapt

• Seasoning with herbs, citrus and spice rather than simply more salt.
• Ingredients rich in umami, such as tomato, mushrooms, aged cheese, soy and seaweed.
• Sauces and braises that reheat well, instead of dishes that depend on crisp textures or a precise moment of doneness.
• Restraint with strong smells, which linger in a small cabin.

Ordering: who, when and how

Catering is usually ordered through the operator, the crew or the charter broker, and supplied by specialist in-flight caterers at or near the larger business airports. FBOs can arrange it, and many will source from a favourite restaurant, although crews prefer caterers who understand packaging, labelling and airside delivery. Allow plenty of time: a full menu is commonly ordered at least 24 hours ahead, and remote airports, very early departures and holiday peaks need more. Give the number of passengers, meals per leg, the time you would like to eat, dietary needs and whether the crew should be catered too.

Catering is normally a separate line on a charter invoice, and aviation catering costs more than the same food from a restaurant because of packaging, airside delivery and timing. Our guide to the charter contract shows where it appears.

The galley decides the menu

Typical galley equipment by cabin size (varies by aircraft and configuration)

Cabin	Typical equipment	What works well
Very light and light jets	Refreshment centre, cold storage, hot water or coffee; often no oven	Cold platters, salads, sandwiches, pastries
Midsize and super midsize	Galley with an oven or microwave, coffee maker, more storage	Simple hot dishes, breakfasts, soups
Large cabin and long range	Convection and steam ovens, large refrigeration, espresso, full crockery	Multi-course menus plated by a cabin attendant

Even on the largest jets, food is cooked on the ground and reheated on board. The art is in choosing dishes that survive that well. Galley design is changing what is possible, as our look at cabin design shows.

Allergies and special diets

Tell the operator about allergies in writing, with the severity, and ask for the caterer's confirmation. In Europe, caterers already work with the 14 allergens that EU food law requires them to declare. No crew can guarantee an allergen-free cabin, because the aircraft and galley are shared with earlier passengers. For severe allergies, carry your own medication and ask whether you may bring sealed food of your own. Remember customs too: some foods cannot be carried across borders, and leftover catering may have to be disposed of on arrival.

Questions

Why does food taste bland on a plane?

Low cabin pressure, very dry air and background noise all reduce how strongly we perceive some tastes and aromas. Laboratory tests commissioned by Lufthansa found that salty and sweet flavours were perceived less intensely under simulated cabin conditions, while acidic and fruity notes held up better.

How far in advance should I order private jet catering?

For a full menu, allow at least 24 hours, and more at remote airports, for very early departures and in peak holiday periods. Simple orders at large business airports can sometimes be arranged at shorter notice, but it is not guaranteed.

Can I bring my own food on a private jet?

Most operators allow it, and the crew can store and serve it, but check in advance. Customs rules still apply on international flights, so some foods, especially meat and dairy products, may not be allowed into the destination country.

Figures checked 19 October 2026. Prices are indicative and never a quote. Seen something out of date? Tell the editors.