... Product Features:1.Use the borosilicate glass as material, clear, eco-friendly, good-touch feel.2. Expansion coefficient ... borosilicate glassware?Intricately handcrafted of mouth-blown borosilicate glass - the same material used to make scientific ... wine, beer, coffee, tea, and even kid-friendly beverages such as milk, juice, or hot ... , dear friend! bake LOGO eco-friendly heat resistant glass teapot