Heirloom Vacuum Flask-Mini is a stewed teapot that doesn’t produce odor. The mouth and body are inspired by Oriental aesthetics. In order not to produce odor at high temperature and store water more hygienically, its inner liner is made of pure titanium and the spout is made of stainless steel. To reduce heat loss, the inner liner thickness is only 0.2 mm with a processed mirror surface. Designed by Dong Wu of Shenzhen Yiyuan Technology Co., Ltd.