Mexican Dinnerware These very functional pottery pieces are lead-free, dishwasher and microwave safe, these richly colored ceramic pieces are handcrafted and painted by Mexican artisans. They are from a small family-owned ceramic workshop in the state of Guanajuato. This workshop has been producting pottery since the late 1970's. Each piece has personality from the dots and swirls to the handpainted logo on the bottom, making each piece unique. Each is lead free, microwave and dishwasher safe.