茶叶保质期100年？COSTA回应

Group 1 - The article discusses a consumer complaint regarding a COSTA organic Pu-erh tea product that has a production date of October 1, 2025, and a shelf life of 100 years, raising questions about the validity of such a long shelf life [2] - Customer service representatives from the COSTA coffee flagship store stated that the tea can be stored for a long time if kept properly, but did not provide details on how the shelf life was determined or if there were any certifications [2] - The article mentions that the Pu-erh tea is categorized into raw and ripe tea, with ripe tea undergoing a fermentation process that makes it milder in taste compared to raw tea [4] Group 2 - It is reported that raw Pu-erh tea has better storage capacity and can improve in flavor over time, but the optimal shelf life is only about 10 years, and the concept of "the older, the better" applies only within this period [5] - The article highlights that only high-quality products stored under appropriate conditions can improve in quality over time, and poor initial quality or improper storage will not yield better results regardless of storage duration [5] - The history of COSTA, which began in 1971 in London and was acquired by Coca-Cola in 2019, is briefly mentioned, along with the introduction of ready-to-drink coffee and tea products under the brand [5]