Nutrition

Why Hot Coffee Might Be Healthier Than Cold Brew



For coffee fans, the change of seasons often also brings a change in morning java habits. The days get shorter and the cups of coffee go from iced or cold brewed to steaming hot, and (just admit it) even pumpkin flavored. Both deliver your much-needed caffeine, of course, but a new study suggests that hot coffee might edge out the cold brewed variety in the health department.

In the new study, published in the journal Scientific Reports, researchers from Thomas Jefferson University in Philadelphia compared the acidity and antioxidant activity of hot and cold brew coffee. The good news for hot coffee? It showed higher levels of antioxidant activity. As a reminder, antioxidants are thought to be involved in some of the famed health benefits of drinking coffee, including a lower risk of heart disease, diabetes, and early death.

RELATED: Is Coffee Actually Good for You?

"In moderation, research shows [coffee] can be pretty good for you," study co-author Megan Fuller, PhD, assistant professor of chemistry at Jefferson, said in a statement. "We found the hot brew has more antioxidant capacity."

Still, Fuller and co-author Niny Rao, PhD, associate professor of chemistry, wrote in their paper: “Additional research is needed to fully understand any possible differences in the health effects of coffee as a function of brewing temperature and time.”

RELATED: Here's What Happened When a Coffee Addict Gave It Up for a Week

Fuller and Rao also found that the acidity of hot and cold brew coffee were pretty similar. Historically, cold brew has often been considered less acidic than hot brew coffee, and therefore gentler on the stomach. But in the new study, the pH levels of the hot and cold brew coffee samples all fell in a range from 4.85 to 5.13. Given those numbers, Rao said in the statement that cold brew cups of Joe shouldn’t be considered the “silver bullet” to caffeinating without GI distress.

But don’t worry, cold brew diehards. Your preferred drink still has antioxidants—as well as other health-promoting polyphenols and minerals found in the hot stuff, too. And cold brew even has some of its own perks: Many people find cold brew coffee tastier, which means you’ll be less tempted to load it up with fat or calories in the form of cream, milk, or sugar, Frank Hu, MD, PhD, professor of epidemiology and nutrition chair at the Harvard T.H. Chan School of Public Health, told Health in a prior interview.

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