BOROSILICATE GLASS MUG | Double walled glass tea mug

Unlike ordinary glass, borosilicate glass is prized for being lightweight and crystal clear to enjoy the color and clarity of your tea. Resistant to thermal shock, it is able to handle both hot and cold drinks without cracking.

The double-walled glass construction insulates your tea. This glass tea mug with a handle is perfect for holding your hot tea while staying comfortable in your hands.

Holds 12 oz of your favorite tea.

How are double-walled glass mugs made?

Borosilicate glass mugs start as a blend of glass materials melted and shaped into the mug’s elegant form. 

Once the mug’s double walls are formed, a small hole that allowed air to release during the process is sealed with a tiny glass “plug”. This keeps the mug airtight and insulated. It’s a clever design detail—but it also means these mugs shouldn’t go in the dishwasher, since the plug seal can loosen over time with high heat or moisture.

The air between the walls insulates the mug's contents keeping your beverage hot or cold for longer. The double-walled construction also helps to prevent condensation from forming on the glass. Your hands will stay dry and forget worrying about leaving a ring on your table.

How to care for a borosilicate glass mug

1. Hand wash: We recommend hand washing your glass tea mug to ensure its longevity. Use warm water and mild dish soap to gently clean the mug. Avoid using abrasive sponges or brushes that could scratch the glass or damage the imprint.

2. Avoid extreme temperature changes: Borosilicate glass can handle hot and cold temperatures. However, it is still best to avoid subjecting it to abrupt temperature changes. For example, do not pour boiling water into a cold glass mug or place a hot mug directly on a cold surface. Gradual temperature changes are less likely to cause stress on the glass.

3. Handle with care: Although borosilicate glass is durable, it is still glass and can break if mishandled. Be cautious when handling the glass tea mug and avoid dropping it or banging it against hard surfaces.

By following these care tips, you can ensure that your borosilicate glass mug will last a long time, providing you with a delightful tea-drinking experience.

Can you microwave a double-wall mug?

Yes, you can microwave a borosilicate glass mug. Borosilicate is a special type of glassware that is resistant to acidic liquids and is microwave-safe.