It's hard to match the refreshing taste of an iced coffee on a hot summer day — but a new BBC investigation may make you think twice before you order a chilled drink.
The BBC's consumer-affairs "Watchdog" program found that samples of iced drinks from Starbucks and two other UK chains — Costa Coffee and Caffe Nero — contained "varying levels of the bacteria."
Along with the ice, researchers also studied the cleanliness of tables, trays, and high chairs at 30 of the coffee-chain branches.
Costa Coffee was the worst offender, with seven out of 10 samples "found to be contaminated with bacteria found in feces."
Starbucks and Caffe Nero also tested positive for "fecal coliforms" in three out of 10 samples.