A good insulated cup is not only about the insulation effect
A good insulated cup is not only about the insulation effect, but also about the user experience. For example, ordinary insulated cups generally use tail vacuum technology, which requires a hidden tail chamber at the bottom of the cup. Therefore, although they have a large volume, they cannot actually hold a few sips of hot […]
A good insulated cup is not only about the insulation effect Read Post »