It is not recommended to put hot pots or dishes directly on a quartz surface. Quartz surfacing is resistant to high levels of heat, however trivets or potholders should be used so as to avoid discoloration of the resin materials that bind the quartz product. Quartz countertops are non-porous making them highly stain resistant. However, it’s important to note that quartz is not completely impervious. If left on the surface for an extended period, certain substances (including strong acids, food dyes or harsh chemicals) can potentially cause staining.