The temperature of the liquid is not transferred to the outside of the glass. This makes it effortlessly easy to enjoy both hot and cold brewed speciality teas. Double walled design makes the liquid inside seem to float.
Material - Borosilicate** Glass (heat resistant, light weight and strong)
Function - Use for tea tastings and modern tea ceremonies.
Cleaning - Rinse with hot water and avoid using the dishwasher. Clean the bottom gently with a soft sponge and avoid applying pressure around the air-hole.
Heating - Microwave or stovetop use not recommended.
Upkeep and usage
Please take care when placing ice into the glass and when using metal spoons to avoid fracturing the inner layer. We suggest placing the liquid first and then the ice.
Please note that you will find a small air-hole at the bottom of the double walled glass. This is not a flaw but a safety measurement, put in place to control the air pressure between walls. Simply rinse with hot water and avoid using the dishwasher. Clean the bottom gently, avoid brush, otherwise, there might be some water trapped inside the hole and fog up between the two walls.
If the ambient temperature in the kitchen is low, warming up the glasses before use will help the glasses last longer.
The glass is less likely to break or shatter if you warm it up gradually. Once you have poured in the hot tea, avoid resting the glass on cold surfaces.
Our insulated double walled glasses are handmade by expert artisans. Because this glass is mouth-blown, each one may have slight differences in height, thickness & weight.
**Borosilicate glass - Borosilicate glass is made mainly of silica (70-80%) and boric oxide (7-13%) with smaller amounts of the alkalis (sodium and potassium oxides) and aluminium oxide.