Each product will have right on the product page the cleaning suggestions for that specific product.  Since we not only custom make our products, but also acquire items from other U.S. businesses, cleaning suggestions will differ for each! We won't leave you hanging and will inform you on each product listing the suggested cleaning methods.As far as kitchen items being dishwasher safe: some are and some are not! For instance the slate cheese boards/trays.  They are dishwasher safe, however we still highly suggest to just hand wash them.  They are easily cleaned by hand & our personal belief that is how you will get VERY long use out of them!As we try to find timeless items.  Not only items that won't go out of style next week, but also timeless as in - they will last you a long time :)