Clear your bathroom that has a pumice stone. Pumice stones can even remove copper rings from The within of the toilet—what can’t this small stone do? Need a further clean? Delponte endorses spraying pumice stones with 70 % Alcoholic beverages to make certain there is no chance of bacterial development. https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/