As holiday travel picks up and more people book trips, enjoying a cup of tea or coffee during a flight might seem like a great way to unwind.

However, Arthur Gautier, a tea expert at Nio Teas, has some advice that could make you think twice before ordering that hot beverage.

Gautier highlighted potential health risks associated with drinking tea and coffee on aeroplanes, particularly due to the quality of onboard water.

He pointed out: “The water used for tea and coffee on planes comes from large tanks that, let’s just say, don’t get the same level of attention as your kitchen tap at home.”

He added that this water is often not as clean as one might expect, especially on long-haul flights.

For those with sensitive stomachs or weakened immune systems, this less-than-fresh water could lead to more than just a subpar brew; it may cause discomfort during the flight.

Have you ever noticed where your tea or coffee is prepared on a plane? “Those trusty coffee machines are often placed right next to the lavatories—yes, that close,” Gautier remarked, highlighting a rather unsavoury reality.

If that doesn’t make you reconsider, Gautier warns that “those machines don’t get much love between flights, unless they break down.”

Over time, this neglect can lead to a buildup of residue, germs, and bacteria, making the situation even less appetising, and with machines located so near to the restrooms, it’s clear how hygiene might be compromised.

“If cleanliness is a priority for you, you might want to think twice before reaching for that in-flight cup of coffee,” he advises.

For those still wanting a warm drink without the risks, Gautier suggests some smart alternatives, like “bottled or canned beverages”.

If you crave tea, consider asking for a bottle of water alongside a cup of hot water. You can then steep your tea bag in the bottled water and warm it up using the hot water.

Of course, this method may be tricky depending on the size of the bottle and cup, and hot water can be hazardous, so take care to avoid spills.

When selecting tea, aim for varieties that steep well in lower temperatures. Gautier suggests options like green tea, white tea, or herbal blends such as chamomile or peppermint, which can be brewed in warm water without losing too much flavour.