All ofOriginal WALFOS Brand products are made of Food Grade , no odor ,BPA Free high qualityplatinumsilicone material, not cheap rubber or TPR material.Our silicone material is the same as silicone babypacifier! Why we use this high quality silicone? Because it is safe for poeple to use it in oven,fridge and our health. Hope yourfamily love and enjoyWALFOS high quality silicone product. WALFOS brand Silicone Food Grade FDA Approved Test ReportIt is very safe to use walfos silicone products for your family!