10 Easiest Ways to Make Your Coffee Habit Healthier 

Use filtered water only

You might think that since we boil water to brew coffee, you don’t have to worry about whether it’s filtered. But Swinney says filtered water is a smart choice, not just for taste, but for health, too.

“Filtered water ensures there are not any unwanted heavy metals like lead or copper that might be found in old pipes. Tap water also contains chlorine disinfection byproducts which can be harmful long term,” she says. “You should also avoid using well water unless it’s been tested for contaminants.”