I live in Ohio and I'm thinking about growing my own potatoes to serve at my restaurant. Would this be a good idea or should I consult with farmers in Idaho so I know I will be getting a good product? 

As for growing your own potatoes, this is certainly an option. Potatoes grow best in high altitudes, in rich well-drained soil; in warm summer climates that also dip into the 50’s at night (this describes Idaho to a ‘T’ by the way!) – which is why we grow more than any other state in the country by far! However, if you decide to grow potatoes, be sure to buy certified seed online from a reputable seed company (avoid planting potatoes obtained from the grocery store as these have been treated to minimize sprouting).