Using your Blomus Salpi Salt and Pepper Grinder Set is a piece of cake. First, to fill them up, simply pull the grinder apart and pour in your salt or pepper. You can customize the coarseness of the spices by turning the dial on the top. When it comes to cleaning, just wipe the silky - smooth silicone surface with a damp cloth. It's that easy! As for storage, keep them in a dry place to avoid any moisture that might affect the performance. If you're not satisfied with your purchase, remember you have 30 days to return the set.