Under what circumstances can we directly request a return or exchange from the seller for a newly purchased stainless steel thermos cup?(Part One)

There are stories in the cup, and warmth in life. Hello everyone, "Dong Dong Talk Cup" is here. More than two months have passed in the blink of an eye in 2025. Are you, like me, striving hard for your goals? http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlIn 2025, I will continue to share with friends professional knowledge and daily purchasing, selection, and usage tips about water cups, stainless steel water cups, stainless steel thermos cups, stainless steel thermos bottles, plastic water cups, and more. I hope everyone will continue to follow me and keep asking questions about water cups. I will try my best to answer them promptly.

In recent years, stainless steel thermos cups have become a daily essential for many people due to their excellent heat retention and durability. http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlHowever, when purchasing a stainless steel thermos cup, it is inevitable to encounter some quality or usage issues. So, under what circumstances can we directly request a return or exchange from the seller? This article will provide detailed answers and teach you how to protect your legal rights.

1. Substandard Heat Retention

The core function of a stainless steel thermos cup is heat retention. If the newly purchased thermos cup, under normal usage (e.g., the water temperature drops significantly within 6-12 hours after filling with hot water), http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlperforms far below the standard advertised by the seller, this constitutes a product quality issue. According to the *Consumer Rights Protection Law*, you can request a return or exchange from the seller.

Friendly Reminder**: Before requesting a return or exchange, it is recommended to check the heat retention parameters in the product manual and compare them with the actual usage results. http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlRetain relevant evidence (e.g., temperature test records).

2. Leakage or Poor Seal

If the newly purchased thermos cup leaks during normal use or has a poorly sealed lid that prevents normal use, this is a clear product defect. http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlThe seller is obligated to provide a return or exchange service.

Note: When applying for a return or exchange, ensure that the thermos cup has not been damaged by human factors (e.g., dropping or impact), otherwise the seller may refuse the request.

Due to space constraints, this article will be shared here. Please continue to pay attention to the remaining content. http://www.zhanyict.com/en/ProductsDetail-VB-10507.htmlWe will share useful knowledge about water cups with you in the next issue.