If you're traveling to a country with unsafe drinking water, there are a few ways to stay safe. The first and easiest way is to buy bottled water to use for everything from drinking to brushing your teeth. You can also boil water for at least 10 minutes or bring iodine tablets to purify it. Be wary of ice cubes used in drinks you consume while out and about, since they're likely made with the contaminated water. Find water safety information here.