Can quartz kitchens countertops handle heat as I’m a cook in a restaurant and my kitchen is the busiest one?

Yes, quartz countertops are great in resisting heat. Still, we recommend you to use heat pads or trivets to keep your quartz counter tops look new and premium all over your life. Quartz itself is great in resisting temperatures up to 150-200°C but the resins and pigments are not. And wish you best of luck for your great cooking experience on quartz kitchen worktops.