The proprietary Bulletproof Process optimizes every step of coffee production for performance by minimizing the opportunity for performance-robbing mold toxins. Ingesting mold toxins can contribute to chronic health issues. Bulletproof® Upgraded Coffee Beans are meticulously grown at high altitude on single estates in Guatemala, hand-harvested, carefully processed, handled and roasted to maintain maximum integrity and flavor. The final roast then undergoes proprietary lab testing to verify that our coffee meets the Bulletproof quality and purity standards.