USDA Organic. Certified Organic by Oregon Tilth. Gluten free. Non GMO Project verified. nongmoproject.org. California tomatoes. We grow our organic tomatoes in California's sunny San Joaquin Valley under the tender care of farmers passionate about organic agriculture. 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 itself, we find it hitched to everything else the universe - John Muir. Tip: From shakshuka and ratatouille, to your favorite sloppy joe recipe, this all-purpose tomato sauce is great wherever you need it! muirglen.com/faqs. how2recycle.info. Questions or comments? 1-800-832-6345. Non-BPA lining (For more information visit muirglen.com/faqs).