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Microplastics (MPs) are prevalent in our environment, being present in the air we breathe and in the food we consume. Due to the widespread use of plastic materials in everyday life, the amount of microplastics being released into the biosphere has become increasingly apparent in recent years. This study provides the first documentation of the presence of microplastics in Chinese baijiu, a popular alcoholic beverage in China, bottled in plastic. It is essential to note the significance of this discovery and potential implications for human health. Analysis of samples collected from the Chinese market showed the presence of microplastics in all six Chinese baijiu brands tested. Concentrations ranged from 172 MPs/500 mL to 944 MPs/500 mL with an average concentration of 436 MPs/500 mL. Cellulose and PA accounted for 70.4% and 17.8% of all microplastics detected, respectively. These were the most commonly detected types. Other types of microplastics were also found, including PET, PP, PVC, and PE. PET accounted for 2.7%, PP for 2.2%, PVC for 1.2%, and PE for 0.1% of all microplastics. The possible sources of contamination include raw materials, ambient air, and equipment and vessels that shed microplastics. Therefore, this study emphasizes the requirement for further research to mitigate the potential hazards associated with human exposure to microplastics. Additionally, it presents significant findings on the presence of microplastics in Chinese baijiu sold in plastic bottles. Full article