The reason why shallow roasting of coffee is more beneficial to health is that shallow roasting is carried out at a lower temperature for a shorter time, and most of the original nutrients, antioxidants, vitamins B and E, flavonoids, etc. of coffee beans are retained. These substances help to improve the immune system function, reduce chronic inflammation, and have antioxidant effects.
Deep roasting will lead to the loss of some nutrients and antioxidants, and in the process of deep roasting, some compounds in coffee beans will be transformed into substances harmful to health, such as acrylamide and acrylic acid. From the health point of view, light roasted coffee is a better choice.