Although it is to protect the environment, many consumers are puzzled. Drink coffee through a straw made of paper. Don't straws rot when soaked in coffee all the time? In order to experience this paper straw, many netizens came to Starbucks coffee shop. But the result of the experience is not so satisfactory. At first, there was no difference between drinking coffee with a paper straw and drinking coffee with a plastic straw, but this problem appeared after a long time.