Glass Teapot, TransparentGlass Teapot,Tea Set with Stainless Steel Infuser and Lid, Borosilicate Glass Teapot Stove Safe Teapot, Flowering and Loose Leaf Teapot Set For Tea and Coffee (Upgrade 21 oz

? Specifications  Material: high borosilicate transparent glass  Filter material: food grade 304 stainless steel  Features: environmental protection, lead-free  Capacity: 21oz / 600ml Small teapot  Package includes: 1 transparent glass teapot with soaker and lid What is borosilicate glass? Borosilicate glass is glass with silica and boron trioxide as the main glass components. The thermal expansion coefficient of borosilicate glass is very low ((3.3 ± 0.1) × 10-6 / K at 20 ° C), so its thermal shock resistance is better than any other ordinary glass. This borosilicate glass has a wide range of uses, from cookware to laboratory equipment, and components of high-quality products, such as implantable medical equipment and space exploration equipment. Why choose glass teapot Most teas, such as green tea, fragrant tea, oolong tea, black tea and Pu 'tea, have weak acidity and short-term brewing pH of about 5.5-6.5. The glass filter prevents chemical reactions between the tea soup and the filter.   ? About warranty: We are still improving protective packaging, but all glass products are very fragile and can be transported over long distances, so it is difficult to avoid damage during transportation, please forgive me! If you receive a damaged product, please contact our after-sales customer service departmen