The gross reason airplane passengers might want to avoid using the water on flights

The gross reason airplane passengers might want to avoid using the water on flights

Bathroom door handles, sinks and drinking water could be highly contaminated, experts warn

"Very little cleaning" happens between most domestic flights, a travel expert reported. (iStock)

Various airplane surfaces — such as overhead bins, tray tables, instruction cards and seat covers — are some of the biggest sources of germs, according to flight attendants. (iStock)

"When an inbound aircraft is late, the airline wants to make up time, and cleaning is often sacrificed," a travel expert noted. (iStock)

Bathrooms can be particularly dirty due to passenger hygiene, according to one expert, and can get "pretty gross" over the course of a flight. (iStock)

Dr. Siegel prefers the use of hand sanitizers on planes instead of handwashing. (iStock)