Fermented Apple coffee products are fermented coffee without roasting beans, protecting the content of chlorogenic acid and polyphenols lost during roasting and lowering the caffeine content. Coffilia fermented coffee has a very low caffeine content compared to roasting coffee. Many caffeine in regular coffee stimulates the digestive system and causes heartburn. It is good for office workers, test takers, menopausal mothers, and all men and all women.