Granites differ in their texture but they all have similar properties such as their resistance to the invasive action of most substances found in the house. Unlike marble and limestone, granite is the least affected by acids or alcohol. It shouldn’t be damaged from standing hot utensils on it or by sharp knives (having said that, the new fusion edge knives claim to be able to cut anything) All stones, due to their granular construction, are porous to a greater or lesser extent and most granites fall into the latter category. To reduce the slight ability of granite to absorb liquids we treat the surface with a proprietary sealer that penetrates the surface and fills the microscopic voids between the crystals. This process is first done in the factory at the completion of manufacture and again when installed. However, you should be aware that with the lighter colored granites you may experience slight darkening of the stone in areas where water has been allowed to stand, but this should fade away as it dries out. Beetroot, wine and cooking oil, particularly when hot may cause a stain on your marble or granite work top, and you should always clean this up immediately with kitchen roll. Marble and Limestone are susceptible to the aggressive action of acids and alcohol. Care should be taken to remove spillages of fruit juice, particularly lemon, wine and vinegar, beetroot etc. e.g. the residue of red wine on the base of wineglasses will leave its mark. Nail varnish and any other solvent or oil based products will stain if not wiped up immediately.