We rigorously test our products at every stage, using only the thickest A-grade borosilicate glass and food-grade 304 18/8 stainless steel. The result is a reusable, durable, and beautifully finished product with exceptional performance. You’re not just buying a Fressko product, you’re investing in your health and lifestyle. Our BPA-free, double-walled products ensure no chemical leaching, discoloration, or flavor tainting, guaranteeing safe and flavorful use for you and your family.