Farm Markets & Produce serving Lehigh Valley. Rated 4.7/5 (552 reviews). From their website: Established in 1752, the year of the City’s founding, the Easton Farmers’ Market (EFM) is the oldest, continuous open-air market in the nation. As a producer only market, the EFM is committed to providing a safe, transparent environment where consumers can shop with confidence, and purchase their food from trusted sources. All products sold at the EFM are locally grown and produced. The vast majority of the produce is naturally/organically grown. All meat and dairy are antibiotic and hormone-fre