I gathered that it was usable as a potato substitute, but just not really commercially available as such. The Irish potato pretty well had the market covered there, and as there are no problem with it, marketing this as a substitute would be a challenge. I'm willing to try it given it seems rather inexpensive. But if the quality and taste are on par with an Irish potato is probably stick to the Irish. I do love mine though, so if there is any mint quality to the vegetation, why not have both. But from my reading i don't believe that to be the case