Can I drink the water in Mexico?

gomexico.about.com

By Suzanne Barbezat

Question: Can I drink the water in Mexico?

Many first-time travelers to Mexico have heard that they shouldn't drink the water. But what to do when you get thirsty? Not to worry: there's plenty of drinking water available everywhere in Mexico!

Answer:

As a rule you should not drink tap water in Mexico. The water is purified at the source but the distribution system may allow the water to be contaminated en route to the tap. Most Mexicans find the idea of drinking tap water somewhat repulsive: they buy water in five gallon jugs called"garrafones" which are delivered to their homes (and recycled). Do as Mexicans do, and stick to purified water.

Most hotels provide bottled water, or large jugs of purified water for you to refill your bottle. Many resorts take this worry away from their guests by having their water purified on-site; if this is the case, there's usually a notice by the tap that the water is potable ("agua potable").

Bottled water is affordable and readily available wherever you travel in Mexico. Order it in stores or restaurants by asking for "agua pura". 

Ice is generally made from purified water; in hotels and restaurants that cater to tourists you shouldn't encounter any issues with the ice or water. Purchasing drinks from market stands and food stalls may be more risky. Ice that is in the form of a cylinder with a hole in the center is purchased from a purified ice factory and is safe.

As a long-time resident I now brush my teeth with tap water but I'm always careful not to swallow it. As a tourist you're better off using bottled water to brush your teeth, and try to remember to keep your mouth shut when you shower.