Borosilicate Glass

Borosilicate glass is a type of glass containing significant amounts of boron trioxide, which gives it exceptional resistance to thermal shock and chemical corrosion compared to standard soda-lime glass.

For plastic-free living, borosilicate glass can be an even better solution than regular glass products. The increased durability with similarly priced options are make this type of glass great for water bottles and tupperware.

Cookware: Measuring cups, mixing bowls, saucepans, double boilers, stovetop-safe pots

Bakeware: Baking dishes, pie plates, casserole dishes, loaf pans

Beverage: Teapots, French press coffee makers, pour-over coffee makers, water bottles

Food Storage: Storage containers, meal prep containers (safe for temperature extremes)

Baby Products: Baby bottles (premium option for thermal shock resistance)

Microplastic Concerns: Borosilicate glass does not shed microplastics. Like all glass, it's an inorganic material that remains completely stable and doesn't break down into particles. Borosilicate glass is one of the safest materials available for eliminating microplastic exposure from food and beverage containers.

Chemical Safety: Borosilicate glass is exceptionally chemically inert - even more resistant to chemical corrosion than standard soda-lime glass. It doesn't react with foods, beverages, or cleaning products regardless of temperature.

Certifications to Look For: Food-grade certification (meets FDA requirements), NSF certification for food contact, laboratory-grade designation (indicates high purity borosilicate), thermal shock resistance ratings. For products marketed as "borosilicate," verify the manufacturer actually uses borosilicate glass rather than tempered soda-lime glass.

Recommendations: Choose borosilicate glass for any application involving temperature changes - hot beverages, oven-to-table cookware, freezer-to-oven storage, or situations where hot and cold contents might come in contact with the container.