Gamro-tea is a Korean traditional herbal tea with sugar content that 1000 times higher than the existing sugar. However in fact, it does not contain sugar at all and natively present non-sugar sweetness and mint flavor which is loved by many people stick to a diet and avoid sugar containing food for their sweetener replacing sugar and natural drink. Also, unlike the exiting green tea with the cold nature, it has warm nature that is greatly helpful for tea of woman and college entrance examinees and non-sugar natural drink. Especially, for people whose job requires throat overtaxed, the smooth taste and mint flavor protect the throat and alleviate the voice. (Non-sugar sweetness: Indigenous sweetness that does not contain sugar).