In a new study, researchers found chemical differences between hot and cold brew coffee that may have health impacts. In particular, the researchers found that hot-brewed coffee has higher levels of antioxidants, which are believed to be responsible for some of the health benefits of coffee. The study, published in Scientific Reports , also found that the pH levels of both hot and cold coffee were similar, ranging from 4.85 to 5.13 for all coffee samples tested.
Coffee companies and lifestyle blogs have tended to tout cold brew coffee as being less acidic than hot coffee and thus less likely to cause heartburn or gastrointestinal problems. The study was done by a PhD, associate professor of chemistry, and a PhD, assistant professor of chemistry, both of them coffee drinkers who wondered whether the chemical make-up of cold brew differed from that of hot coffee. While the popularity of…
