A cultured yeast, brown sugar contains 95% sucrose and a large number of trace elements, which converts sucrose into alcohol and acetic acid. Experts pointed out that this drink contains acetic acid and a small amount of alcohol. When the strain is propagated, it is not polluted by bad bacteria and is harmless to human body, but its efficacy has never been proved by research. Pan, chairman of the Taiwan Province Health Food Society and director of the Institute of Microbiology and Biochemistry of National Taiwan University, said that Tibetan mastiffs are distributed all over the world, but the composition is slightly different. Tibicos adds sugar water, which is equivalent to giving the bacteria nutrients to reproduce, and then it will reproduce. A kind of lactic acid bacteria can produce polysaccharide gel and adsorb other bacteria. In addition to gel, bacteria also produce acetic acid, alcohol and carbon dioxide during reproduction. Pan believes that as long as the bacteria are not polluted by bad bacteria during reproduction, it is not a big problem to drink a little bacterial juice, especially acetic acid can promote human metabolism and is good for health; But in the process of reproduction, special attention should be paid to bacteria to avoid being polluted by bad bacteria. It is suggested that the container should be disinfected with hot water first, and the bacteria should be washed with clean water. When bacteria ferment, it is best to cover them with clean and breathable cloth to avoid pollution caused by other bacteria falling. Cai Yingjie, a professor at the Institute of Biochemistry of Yangming University and former chairman of the Taiwan Province Lactic Acid Bacteria Association, said that no research has pointed out that Tibicos is effective, but Tibicos is more complicated, because it contains quite a few strains, and there are also many undesirable bacteria. Cai Yingjie said that taking yeast as an example, usually after three or four generations, the vitality of the strain will weaken. At this time, the chances of bad bacteria coming in are higher. You may have diarrhea after drinking it, or some toxic substances may run into your body. For the sake of safety, it is best not to drink. Lin, director of clinical toxicology at Chang Gung Memorial Hospital, said that fermented liquid of Tibetan medicine has both advantages and disadvantages for human body. The advantage is that alcohol will be produced, and some people with cold hands and feet will feel warm after drinking it in winter. However, Tibicos fermented juice is not as good as a bottle of yogurt. However, pollution or mutation may have adverse effects on human body in the process of strain reproduction. Old people, children or people with poor resistance are advised not to drink. Lin Xuerong, Director of Food and Health Department of the Department of Health, said that the Department of Health began to understand Tibicos' investigation. Before the effect is confirmed, appeal to the public not to be credulous, let alone to distribute the strains to friends and relatives, so as not to have bad intentions, and eventually harm the health of others, or even encounter civil compensation proceedings, because even though "China Mushroom" claims to be food, it can be given as a gift of 30,000 to/kloc-0.50 million yuan according to Article 11 of the Food Hygiene Management Law. In addition, Lin Xuerong said that even if some ingredients in food have health care functions, as long as they claim to have curative effects, they are drugs. No matter whether there is commercial trafficking or not, as long as there are signs, propaganda and advertisements, they may violate the provisions of Article 19 of the Food Hygiene Management Law and may be fined 200,000 to/kloc-0.0 million yuan.