淺焙咖啡會比較養生嗎？Is Light Roast Coffee Healthier?

咖啡近年來被認為有益健康，咖啡中的綠原酸(Chlorogenic acid)抗氧化作用，是現在保健成份的當紅炸子雞。綠原酸為一種多酚，是植物富含的天然抗氧化物，對健康有正面效益。日本藥學博士岡希太郎表示，綠原酸存在於咖啡、蘋果、茄子、馬鈴薯、牛蒡、南瓜等食物中，其中又以咖啡的含量最為豐富，也是唯一能用喝的就能攝取綠原酸的方式。

In recent years, coffee has been regarded as beneficial to health. Chlorogenic acid in coffee has an antioxidant effect and is now a popular health care ingredient. Chlorogenic acid is a polyphenol, a natural antioxidant rich in plants, with positive health benefits. A Japanese pharmacist (岡希太郎) said that chlorogenic acid exists in coffee, apples, eggplants, potatoes, burdocks, pumpkins and other foods. Among them, coffee is the most abundant, and it is the only one that can drink chlorogenic acid.

綠原酸具有抗氧化的效果，能夠減少自由基產生的傷害。許多研究發現抗氧化對人體的好處，能夠協助維護免疫系統、舒緩肌膚老化影響、降低因自由基反應引起的發炎、降低心血管疾病風險…等，對健康的正向影響多多。

Chlorogenic acid has an antioxidant effect and can reduce the damage caused by free radicals. Many studies have found the benefits of antioxidants to the human body, which can help maintain the immune system, soothe the effects of skin aging, reduce inflammation caused by free radical reactions, reduce the risk of cardiovascular disease, etc. There are many positive effects on health.

不過綠原酸相當不耐熱，會因烘焙時間而不斷減少，咖啡生豆完整的綠原酸，在烘到淺焙時還能保留50%的綠原酸，至深焙就只剩下5%左右了，因此以想要喝到綠原酸的營養價值，淺焙相較於深焙咖啡會是好選擇。享受咖啡的花果香，放鬆身心、又兼具保養效果，建議選擇無添加，具有品質把關、堅持挑豆的精品莊園級的黑咖啡會是對健康較佳的選擇。

However, chlorogenic acid is not heat-resistant and it will be continuously reduced due to the roasting time. The complete chlorogenic acid of green coffee beans can retain 50% of the chlorogenic acid when it is light roasting, and only 5% remains when it is dark roasting. Because of the nutritional value of chlorogenic acid, light roasted coffee is a better choice than dark roasted coffee. You can enjoy the floral and fruity aroma of coffee, relax your body and mind, and also the light roasted coffee has a maintenance effect. It is recommended to choose a boutique estate black coffee with no additives, quality control, and insisting on picking beans. It will be a better choice for health.

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 │Further reading: Drinking black coffee contains polyphenols to regulate immunity / Drinking coffee can help health and beauty / Coffee health care and protect eyes