 Best food ice can be dirtier than toilet water. In that iced coffee you love, it comes with a special ingredient, poop bacteria, and it's making you sick. And no one's stopping it. The FDA doesn't inspect ice at restaurants and bars. Ice machines are hard to clean and rarely get inspected, making them a perfect breeding ground for all kinds of disgusting bacteria. Americans love ice. In fact, it's the most consumed food in a restaurant. So maybe Europeans have been right all along. Although there is one liquid that can kill all the bacteria, whiskey.