Would you drink the water on your next flight?

A new report suggests the drinks your flight attendants serve may be contaminated. Can you guess the worst offenders?

Here’s a travel tip you won’t find in the airline safety briefing: Don’t drink the water.

For years, seasoned flyers have adhered to the “coffee pot” rule—never order a beverage that comes from a tank. Flight attendants know it. They won’t touch the stuff. Now, new research confirms our collective paranoia.