USDA Organic. Certified Organic by Oregon Tilth. Gluten free. Non GMO Project verified. nongmoproject. We grow our organic tomatoes in California’s sunny San Joaquin Valley under the tender care of farmers passionate about organic agriculture , and can them within 8 hours for the best flavors. Our founder’s commitment to organic agriculture led to our name, a nod to John Muir, Father of the National Parks. When we try to pick out anything by its we find it hitched to everything else the universe. - John Muir. Questions or comments? 1-800-832-6345. Non-BPA lining (for more information visit muirglen.com/faqs).