Borosilicate Glass

Borosilicate Glass is a specialized type of glass that includes boron trioxide, which allows for a very low coefficient of thermal expansion. This means it will not crack under extreme temperature changes like ordinary soda-lime glass.

In the world of tableware, it is the premier choice for “heat-resistant” products, ranging from delicate tea presses to heavy-duty glass bakeware.

• Thermal Shock Resistance: It can withstand rapid temperature shifts—for example, pouring boiling water into a chilled pitcher—without shattering.
• Durability & Clarity: It is more resistant to chemical corrosion and maintains its crystal-clear transparency even after repeated use.
• Lightweight: Borosilicate items often feel lighter and thinner than traditional glass, yet they are structurally stronger.
• Non-Reactive: It is completely non-porous and lead-free, ensuring that the taste of your tea or coffee remains pure.

• Coffee Gear: French presses, pour-over drippers (like Chemex), and double-walled espresso cups.
• Tea Service: Transparent teapots with glass infusers to showcase blooming teas.
• Bakeware: Oven-to-table roasting dishes and storage containers.

• Dishwasher Safe: Generally safe, but be careful with “Double-walled” glasses; ensure they are securely placed to avoid clinking.
• Microwave & Oven Safe: Excellent for heating, but always avoid direct flame unless specified by the manufacturer.
• Avoid Impact: While thermally strong, it is still glass. Dropping it on a hard surface will cause it to break.

• HARIO (Japan) - The “King of Glass,” world-renowned for their V60 drippers and heat-resistant servers.
• BODUM (Denmark) - Famous for popularizing the French Press and double-walled borosilicate glasses.
• PYREX (Original Formula) - Historically used borosilicate for its iconic lab and kitchenware.
• CHEMEX (USA) - Uses high-quality borosilicate for its laboratory-grade pour-over carafes.