Our Core Material

Diatomaceous Earth

Crafted from our unique Diomat® blend of diatomaceous earth and paper, this fast-absorbing stone pulls moisture away in seconds. Unlike traditional fabric mats that trap water, Diomat® helps eliminate the damp environment where mold and mildew thrive.

Diatomaceous earth is a naturally occurring material formed from the fossilized remains of microscopic organisms. Its naturally porous structure absorbs moisture quickly, helping keep surfaces drier. Made for everyday use, Dorai's stone products are durable, long-lasting, and designed to stay in your home for years.

Diomat Stone under a microscope

Why Diatomaceous Earth

All-Natural Material

Diatomaceous earth, or grass of the sea, is a naturally occurring mineral made from the fossilized remains of tiny aquatic organisms.

Prevents Bacteria & Mold

Our unique, quick-drying Diomat®  technology helps eliminate the damp environment where bacteria and mildew thrive.

Dries Instantly

Diatomaceous earth holds up to 150% of its weight in water and contains millions of pores, causing moisture to evaporate rapidly.

Dorai vs. Traditional Bath Mats

Dorai Bath Mat

Dries in under 60 seconds

Traditional Bath Mats

Traps moisture for 12+ hours

Our Other Materials

Silicone

Silicone

  • WATER-RESISTANT
  • DURABLE
  • EASY TO CLEAN

Dorai’s silicone is BPA-free, passes Prop 65 testing, and is food-safe. Its soft texture protects dishes on Dorai dish stones, while also increasing air flow under the dish mat. Silicone is easy to clean, even on germy surfaces, like the Dorai Toilet Brush, making it an ideal choice for any space.

Frequently Asked Questions

Have questions? Visit the Help Center or see frequently asked questions below.

Yes. Diatomaceous earth draws moisture away from the surface and releases it into the air, so the mat is dry again within minutes.

Great question! Dorai is pronounced DOR - eye. From the Japanese word for dry, it symbolizes a natural, moisture-free home.

Diatomaceous earth, or grass of the sea, is a naturally occurring mineral that is made from the fossilized remains of tiny aquatic organisms.

Diatomaceous Earth is antimicrobial by its physical properties - not through the use of any chemicals or toxins. In its raw state, the material attracts and binds bacteria and parasites, causing them to dry out and die.

When compressed into boards it still rapidly evaporates to help prevent mold but doesn't hold the same antimicrobial properties as the raw material.

Unlike many bath mats or dish racks, the Dorai Diomat utilizes rapid drying that dissipates moisture and helps to prevent mold. However mold is a pesky invader, while Dorai's Diomat can hold up to 150% of its weight in water, it needs adequate airflow to rapidly dry. 

If your Dorai products are constantly saturated and not able to properly dry out, they can eventually grow mold (at a much slower rate than traditional products). To prevent this, be sure your products are slightly elevated from the surface (by using the non-slip pad included in the Bath Stone™ mat), and let them fully dry out between uses. When overly saturated, prop them up against a wall and when they return to their original light color, they are ready to go.

Similar to light-colored towels or sheets, darker liquids or self-tanners can cause some staining if absorbed into the mat. Lighter liquids will not typically stain your mat. In the event that your mat gets stained, it can be cleaned in two ways. 

For light stains or scuffs, use the included sandpaper to gently rub off any marks. We recommend doing this in a well-ventilated area. For more extreme stains, small amounts of bleach or hydrogen peroxide will do the trick.

Yes. Diatomaceous earth draws moisture away from the surface and releases it into the air, so the mat is dry again within minutes.

Yes. Diatomaceous earth draws moisture away from the surface and releases it into the air, so the mat is dry again within minutes.

In a diatomaceous earth stone mat, water is quickly absorbed into the millions of microscopic pores its material has.This rapid absorption allows the Dorai Bath Stone to hold up to 150% of its weight in water, which then evaporates quickly. The pores also keep the surface dry and prevent water from pooling on your bathroom floor.

With proper care, Dorai Bath Stones can last several years. These diatomaceous earth bath mats are designed for durability, and regular maintenance helps preserve their functionality. By following care instructions, you can ensure that your diatomaceous earth Bath Stone remains in excellent condition for a long time.

Yes, a diatomaceous earth drying mat from Dorai Home is safe. Made from natural diatomaceous earth, these mats offer a clean and healthy drying solution. Our diatomaceous earth Bath Stone is designed to be environmentally friendly and safe for everyday use to ensure that your bathroom remains free from harmful bacteria and mold.

Dorai, unlike many competitors, holds itself to the highest standard of testing. Our products use 100% food grade diatomaceous earth. Our Diomat® material Independently tested in accordance with FDA standards, is food safe, and passes Prop 65 testing. Prop 65 testing means our products are asbestos and lead free.

Yes, stone bath mats like the Dorai Bath Stone are highly sanitary. These mats help prevent the growth of mold and bacteria by quickly absorbing and evaporating moisture. The antimicrobial properties of a diatomaceous earth mat ensure a clean and safe bathroom environment.

Stone mats made from diatomaceous earth, such as the Dorai Bath Stone, are designed to prevent mold growth. The quick-drying properties of our diatomaceous earth bath mat reduce the chances of mold formation. Proper care and maintenance further help in preventing mold.