I Almost Ordered a Drink on My Flight—Then a Stranger Told Me Not To. Here’s Why Some Travelers Avoid Certain Beverages on Airplanes

Air travel is full of little rituals. Some people settle into their seats with a book, others immediately reach for their headphones, and many look forward to ordering a complimentary drink once the plane reaches cruising altitude. Whether it's a cup of coffee, a glass of soda, tomato juice, or simply a bottle of water, enjoying a beverage has become part of the flying experience for millions of passengers around the world.

But what would you do if, just as you were about to place your order, the passenger sitting beside you quietly leaned over and said, "You really shouldn't order a drink on a plane."

Would you ignore the comment?

Would you ask why?

Or would curiosity get the better of you, causing you to skip your drink entirely?

That's exactly what happened to one traveler, whose experience has sparked widespread discussion online. The story isn't about a dangerous secret hidden by airlines or an alarming health warning. Instead, it highlights several practical reasons why some frequent flyers choose to avoid certain beverages during flights—even though many others enjoy them without any problems.

So why do some experienced travelers hesitate before accepting an in-flight drink? The answer depends on several factors, including hydration, airplane water systems, cabin conditions, personal health, and even simple comfort.

Let's take a closer look at the reasons behind this surprisingly common travel habit.

The Story That Started the Conversation

Imagine settling into your airplane seat after making it through airport security, boarding, and finding space for your carry-on luggage.

The flight attendants begin beverage service shortly after takeoff.

As the cart approaches, you're already thinking about ordering your favorite drink.

Just before it's your turn, the passenger beside you quietly says:

"I wouldn't order a drink if I were you."

Naturally, you're surprised.

The person doesn't seem frightened.

They aren't warning about turbulence.

They simply recommend skipping the beverage.

Unsure what they mean, you decide not to order anything.

Hours later, curiosity remains.

Why would someone say that?

Airplane Cabins Are Much Drier Than Most People Realize

One of the biggest challenges during air travel isn't the flight itself—it's dehydration.

Commercial aircraft cabins maintain relatively low humidity levels.

In many cases, cabin humidity falls below 20 percent.

For comparison, many comfortable indoor environments maintain humidity between 30 and 60 percent.

Dry cabin air can contribute to:

Dry lips

Dry skin

Dry eyes

Scratchy throat

Mild headaches

Fatigue

Because of these conditions, staying hydrated becomes especially important during longer flights.

Ironically, avoiding drinks altogether isn't usually the best solution.

Instead, many travel experts recommend drinking water regularly throughout the journey.

Not Every Drink Hydrates Equally

Although staying hydrated is important, not every beverage provides the same benefits.

Many experienced travelers prefer plain water over drinks containing excessive amounts of caffeine, alcohol, or sugar.

Coffee

Coffee remains one of the most popular in-flight beverages.

However, caffeine affects individuals differently.

Some people tolerate it well.

Others may experience:

Increased bathroom visits

Mild dehydration

Restlessness

Difficulty sleeping after long flights

This doesn't necessarily mean coffee is unsafe.

It simply may not be the ideal choice for everyone during air travel.

Alcohol

Many passengers enjoy wine, beer, or cocktails while flying.

However, alcohol's effects may feel stronger at cruising altitude.

Combined with dry cabin air, alcohol can contribute to dehydration and fatigue.

For some travelers, even one drink may increase feelings of dizziness or tiredness.

Others experience no noticeable problems.

Individual responses vary.

Sugary Soft Drinks

Carbonated beverages remain another common choice.

However, gas naturally expands at higher altitudes.

Some passengers find that soda contributes to:

Bloating

Stomach discomfort

Increased burping

Again, these effects don't occur for everyone.

But travelers with sensitive digestive systems sometimes prefer still water instead.

The Topic of Airplane Water Systems

Perhaps the most frequently discussed reason involves the water used onboard aircraft.

Commercial airplanes carry potable water in onboard tanks.

These tanks supply water for:

Coffee

Tea

Some beverage preparation

Lavatory sinks

Airlines operate under regulations requiring water quality monitoring and maintenance.

However, aviation experts have occasionally suggested that travelers who prefer extra caution may choose bottled beverages over drinks prepared using onboard tap water.

This recommendation doesn't imply that airplane water is unsafe.

Rather, it reflects personal preferences regarding maintenance practices and water storage systems.

Many travelers who are particularly cautious simply order:

Bottled water

Canned soda

Sealed juice

Bottled sparkling water

These products arrive unopened from their original packaging.

Tea and Coffee: Why Some Frequent Flyers Skip Them

When people discuss avoiding drinks on airplanes, coffee and tea often receive the most attention.

The reason isn't necessarily the beverages themselves.

Instead, it's because hot drinks are typically prepared using water from the aircraft's onboard supply.

Some flight attendants interviewed over the years have shared personal preferences for choosing bottled beverages instead.

It's worth noting that practices vary among airlines, and aircraft undergo regular inspections and maintenance.

Nevertheless, some travelers prefer avoiding uncertainty by selecting sealed drinks.

Hydration Before Boarding

Experienced travelers often begin preparing for hydration before arriving at the airport.

Many carry reusable water bottles through security checkpoints, filling them afterward at airport hydration stations.

Doing so allows passengers to begin flights well hydrated before beverage service even starts.

Some travelers also purchase bottled water in the terminal to bring onboard.

Why Tomato Juice Tastes Different on Airplanes

Interestingly, one beverage actually becomes more popular during flights.

Tomato juice.

Researchers have found that cabin pressure and background engine noise can subtly alter how people perceive flavors.

Sweetness may seem less intense.

Savory flavors often become more noticeable.

This may explain why passengers who rarely drink tomato juice on the ground suddenly enjoy it at cruising altitude.

It's one of aviation's more fascinating food science observations.

Personal Medical Considerations

Certain medical conditions may also influence beverage choices during flights.

Individuals managing:

Diabetes

High blood pressure

Kidney conditions

Gastrointestinal disorders

may choose beverages carefully based on medical advice.

Similarly, travelers taking certain medications may avoid alcohol or excessive caffeine.

Healthcare recommendations differ depending on individual circumstances.

Bathroom Convenience

Another surprisingly practical reason involves restroom access.

Passengers seated in window seats on long flights sometimes intentionally limit beverages simply to reduce bathroom trips.

Others prefer staying hydrated despite the inconvenience.

It's largely a matter of personal comfort.

Sleep During Overnight Flights

Passengers hoping to sleep often skip caffeinated beverages entirely.

Coffee, energy drinks, and strong tea may interfere with rest, particularly during overnight international flights.

Instead, many travelers choose herbal tea, water, or no beverage until after landing.

Flight Attendants' Advice

Flight attendants spend hundreds of hours in the air every year.

Over time, many develop personal routines regarding food and beverages.

Some always bring their own reusable water bottles.

Others purchase bottled drinks after airport security.

Still others happily drink coffee onboard without concern.

Their habits vary just as much as those of passengers.

What Aviation Experts Generally Recommend

Most travel health experts agree on several basic recommendations:

Stay hydrated throughout the flight.

Limit excessive alcohol.

Moderate caffeine if you're sensitive.

Consider bottled beverages if you prefer sealed products.

Eat balanced meals during long journeys.

Move around periodically when safe to do so.

These suggestions support comfort during travel rather than reflecting specific dangers.

Common Myths About Drinking on Airplanes

The internet has generated countless rumors over the years.

Some claim all airplane water is unsafe.

Others insist every beverage should be avoided.

Neither extreme accurately reflects reality.

Commercial aviation is heavily regulated.

Airlines follow procedures for maintaining potable water systems and food safety standards.

At the same time, passengers remain free to make personal choices based on their comfort level.

Some happily enjoy coffee on every flight.

Others choose bottled water exclusively.

Both approaches are common.

Tips for Staying Comfortable During Air Travel

If you're preparing for your next flight, consider these practical hydration tips:

Drink water before boarding.

Bring an empty reusable bottle through airport security and refill it afterward.

Choose beverages that make you feel your best.

Limit alcohol if you're prone to dehydration.

Use moisturizing eye drops if you wear contact lenses.

Apply lip balm to combat dry cabin air.

Stretch periodically during longer flights.

Eat light meals if you experience motion discomfort.

These simple habits often make long flights more pleasant.

So, Should You Avoid Drinks on Airplanes?

The short answer is: not necessarily.

There is no universal rule saying passengers should never order beverages during a flight.

The advice some travelers share usually relates to personal preferences regarding hydration, caffeine, alcohol, or drinks prepared using onboard water systems—not because in-flight beverages are inherently unsafe.

For many people, ordering a cup of coffee, tea, juice, or water is a routine part of flying and causes no issues at all. Others simply prefer sealed bottled drinks for peace of mind or choose water to stay well hydrated in the dry cabin environment.

Ultimately, the best choice depends on your own health, comfort, and travel needs. The next time someone tells you to skip a drink on a plane, it may be worth asking why. You might discover they're sharing a personal travel habit rather than a universal safety rule—and you'll be able to decide what works best for you with a better understanding of the facts.