Skip to Content

Borates in the Kitchen

The kitchen is one of the most borate-rich places in your home. Borates bring convenience, safety, and cleanliness to this well-used room.

On your shelves

Cooking in the kitchen starts with borates in your hands. Consult a cookbook or reach for a carton from your refrigerator shelf and the adhesives that hold it together include borates. The borate improves stickiness and makes adhesives easier to apply in manufacturing.

Close-up view of an open book's spine and pages, showing intricate stitching, with blurred edges and a focus on the binding.

Don't use traditional cookbooks? The phone or tablet you use to look up a recipe also contains borates! The screen is made of thin film transistor liquid crystal display (TFT LCD) which is a specialized borosilicate glass.https://www.borax.com/products/applications/adhesives-caulks-sealants

Boron in adhesives, caulks, and sealants

Glazing your tiles and dishes

In traditional ceramics, concentrated borates increase strength and improve resistance to scratches and chemicals for kitchen products such as:

  • Floor and wall tile

  • Domestic tableware and cookware

  • Sanitary ware such as ceramic plumbing fixtures

You can also find borate glazes in decorative pottery such as bowls and vases.

Boron in ceramics, enamels, and glazes

In your knife block

Metal borides are very hard substances with high melting points. Carbon can also combine with boron to form a very hard substance—boron carbide (B4C) which approaches the hardness of diamond. It is used to coat domestic knife sharpeners.

Learn more about boron carbide

In your large appliances

Built-in oven with wood paneling, digital clock showing 16:17, and interior light on, revealing empty racks inside.

Borate-enameled steel is used for its durability and simple cleaning on stoves and refrigerators (as well as washing machines and dryers).

A person in a red plaid shirt presses a button on a refrigerator's digital display panel.If you have a smart fridge, the same TFT LCD screen found in your phone is also used here.

Stacked clear glass bowls tilted on a wooden surface, with a plain white background.

Making cooking easier

The microwave has revolutionized the kitchen—giving people the ability to cook in minutes. Many microwaves come with a hygienic borosilicate enamel linin, which has been found to use less energy and so reduce the destruction of vitamins. Digital timers use a liquid crystal display which has a thin-film transistor made from borosilicate glass.

A plate of broccoli inside a microwave oven, with the timer set to one minute.

The microwave safe glassware you use to cook your food is made from boron. Borosilicate glass can withstand high temperatures making them especially useful around the kitchen.

Opening the oven door to check on what’s inside allows heat to escape, extending cooking times. With a glass door—made of borosilicate to withstand high temperatures—you can watch food without heat loss.

Boron in glass and glass fibers
A white farmhouse sink under a window with potted plants on the sill, surrounded by mosaic tile backsplash and jars with food items on the counter.

Keeping your sink in order

Many sinks and drainers are enamel-coated steel. They are hard, durable, attractive, and easy to clean. The glassy enamel coat contains nearly 10% borate which aids in the melting of the glass and its adhesion to the steel. If you have a translucent all-glass sink, it’s made of borosilicate glass.

Boron in metallurgy

If the kitchen is the heart of a home, borates are at the heart of the kitchen. By improving the durability, ease-of-use, and performance of materials and products essential to modern living, borates have become an integral part of our lives.

Now that you know just a few examples of where you can find borates in your home, learn more about about this amazing mineral.

Basics of boron