This year's is Fri Sept 15th-Sunday Sept 17th --
https://www.motherearthnewsfair.com/pennsylvania/ -- full schedule isn't up yet, but I think the tomato tasting's usually on Saturday.
Will this be the year I finally make it to this one? Not sure, as always, it's coming after the Heritage Harvest at Monticello, and it's hard for me to go away to a different festival right afterwards...