This reply
4000 mark this message contains true information
originally written by 4000
保溫瓶細長的形狀與防止飲料溢出的結構,也都可能藏有看不到的汙垢!幸好,除了每天清洗用過的保溫杯之外,使用生活中常見的小蘇打粉、白醋、鹽等材料,都能夠幫助維持保溫杯的衛生。

References

https://www.everydayhealth.com.tw/article/13758

The content above by Cofacts message reporting chatbot and crowd-sourced fact-checking community is licensed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), the community name and the provenance link for each item shall be fully cited for further reproduction or redistribution.