Halved kalamata olives in balsamic brine. Gluten free. Non GMO Project verified. nongmoproject.org. Mediterranean specialties. Our Greek Kalamata Olives are grown on local family farms, tree ripened in the Mediterranean sun, and cured for months in our exclusive brine recipe (often used for vinaigrette). No artificial ingredients. peloponnese.com. From the award winning kitchen of Peloponnese. Product of Greece. Imported from Greece.