[header] How to clean a quartz countertop [title] Wet a washcloth with warm, soapy water. [step] To keep your quartz countertops clean, you usually won't need anything more sophisticated than a gentle soap solution. Generally, it's best to use a mild dish detergent that doesn't contain any astringents or harsh chemicals. 
These substances can wear down quartz with repeated use. [substeps] The resins used to seal quartz make the finish resistant to everyday dust, dirt, stains and mold.