Is Quartz Countertop Kosher?

Quartz countertops have become an increasingly popular option for kitchen and bathroom remodeling projects in recent years. Many homeowners are drawn to the durability, low maintenance, and stylish appearance of quartz. However, those who keep kosher may wonder if quartz countertops are acceptable according to kosher dietary laws. In this comprehensive guide, we’ll explore what makes a countertop kosher, examine the kosher status of quartz, and provide tips for choosing a kosher-friendly quartz countertop.

What Makes a Countertop Kosher?

According to Jewish dietary laws, known as kashrut or kosher laws, certain materials are considered kosher while others are not. There are a few key factors that determine whether a countertop is kosher:


The materials used to create the countertop must be kosher themselves. Natural stone, quartz, stainless steel, wood, laminate, and some solid surfaces are generally accepted as kosher materials. Materials derived from non-kosher animals, such as bone, shell, or marble containing animal fat, are not kosher.

Heat Resistance

Kosher countertops must be able to withstand heat. This allows cookware to come into direct contact with the surface when cooking meat or dairy, avoiding any mixing of the two which is forbidden according to kosher laws. Quartz and natural stone can withstand high heat.


The countertop material cannot be porous or absorptive. Absorptive materials can trap food particles and liquids, allowing meat and dairy to mix or cross-contaminate. Quartz is non-porous and does not require sealing.

Easy to Clean

Kosher countertops must be easy to clean and sanitize. Smooth, non-porous materials like quartz allow thorough cleaning to avoid cross-contamination.

Is Quartz Kosher?

The composition and properties of quartz make it a kosher-friendly choice:

  • Inorganic material – Quartz countertops are made from ground quartz stone and polymer resins. Since quartz is a natural stone, it is inherently kosher.
  • Non-porous – Quartz has a smooth, sealed surface that prevents absorption of spills and residues.
  • Heat resistance – Quartz can withstand heat up to 212°F without damage, allowing cookware to be placed directly on the surface.
  • Easy to clean – The non-porous quartz surface can be cleaned with soap and water or disinfecting cleaners.

For these reasons, quartz counters are considered kosher and are rabbinically approved for kosher kitchens. They avoid the concerns of cross-contamination and mixing meat and dairy that exist with other materials.

Choosing a Kosher-Friendly Quartz Countertop

When selecting a quartz countertop for a kosher kitchen, there are a few factors to consider:

Opt for Solid Slab

Quartz slabs that are cut from a single piece of material are ideal to avoid seams that could trap food particles.

Stick to Neutral Colors

Light quartz colors like white, cream, or gray will best conceal any stains from cooking or food prep. Darker quartz colors with bold veining are harder to keep looking clean.

Select a Smooth Finish

Matte or lightly textured quartz finishes are easier to wipe down than glossy or heavily patterned finishes.

Avoid Composite Materials

Some engineered quartz-like products incorporate resins mixed with crushed stone, shells, or metals. Opt for 100% natural quartz slabs.

Buy from a Trusted Brand

Reputable quartz brands like Caesarstone, Cambria, and Silestone provide documentation verifying the kosher compliance of their products.

Kosher Quartz Countertop Brands

Many leading quartz suppliers produce kosher-certified products that are ideal for kosher kitchens:

  • Caesarstone – Markt by Caesarstone quartz lines are certified kosher by the Orthodox Union (OU).
  • Cambria – Offers extensive kosher-certified quartz options, certified by Star-K.
  • Silestone – N-Boost quartz collection is certified kosher by Star-K.
  • LG Viatera – Provides kosher certification from the Chicago Rabbinical Council (cRc).
  • Quartz Master – Quartz surfaces are OU Kosher certified.
  • MSI Q Premium Natural Quartz – Certified kosher by the Orthodox Union (OU).
  • Corian Quartz – DuPont provides kosher certification for Corian quartz surfaces.

Purchasing quartz from a major brand allows you to easily access documentation confirming the kosher status of a specific color and finish.

Quartz Countertops for Kosher Kitchen FAQ

Is all quartz kosher?

The vast majority of quartz countertops on the market today are composed of natural quartz making them kosher. However, some quartz-like engineered composites blend in other non-kosher materials. Checking for kosher certification is the best way to verify that a quartz product is 100% kosher.

Does quartz need to be kosher certified?

It is not mandatory for quartz to be certified kosher, as its base ingredients are inherently kosher. However, kosher certification from a recognized authority provides assurance that the product contains only kosher components. Many buyers prefer the peace of mind that certification brings.

What about resins in quartz?

The resins used by major quartz manufacturers to bind the crushed quartz particles together are verified as kosher. The polymers and pigments used to tint the resins must also be kosher. Kosher certifications ensure these binding agents meet standards.

Is Caesarstone kosher?

Yes, Caesarstone quartz surfaces with the Markt branding are certified kosher. Only Markt quartz colors and finishes designed for the kosher market are certified. Other Caesarstone quartz products are kosher but not officially certified.

Can quartz be used next to a stove?

Yes, quartz can withstand the heat from stovetops and kitchen appliances, making it safe for kosher kitchens. Quartz is unaffected by temperatures up to 212°F. Just avoid direct high heat from burners to prevent discoloration.

Does quartz need to be sealed?

No, quartz does not require sealing. It is non-porous, so spills and residues remain on the surface rather than absorbing. This helps quartz meet kosher standards by preventing absorption of non-kosher residues.

Is quartz better than granite for kosher kitchens?

Quartz is preferable for kosher compliance since it never needs sealing. Granite is porous and will require periodic sealing to prevent absorption of particles into the surface. Quartz offers the best low-maintenance, kosher-friendly option.


Quartz makes an excellent choice for kosher-observant homeowners seeking durable, stylish, and low-maintenance countertops. Its kosher properties of being non-porous, heat-resistant, and easy to clean allow it to meet the strict guidelines for materials used in kosher kitchens. Sticking to reputable brands like Caesarstone and Cambria ensures that the quartz contains only kosher ingredients. Opting for neutral solid slab quartz in matte finishes facilitates keeping the surface free of non-kosher residues. With proper selection, quartz countertops can provide the perfect worry-free surface for food preparation and cooking in kosher kitchens.