All finishes are non-toxic, organic, and food safe.  For items made to be used, just wash with warm soapy water, or brush under running cold tap, without immersing the whole item; rinse and immediately towel dry (not dishwasher safe!).  To rejuvenate the wood once or twice a year wipe on a generous coat of mineral, flaxseed/linseed oil (NOT boiled linseed oil), tung, or walnut oil.  Let soak overnight before polishing off any excess.  Best not to use vegetable oil it may become rancid.