We just received an email from a customer who received our black seed oil. He voiced that BioNatal black seed oil is amazing but is asking why we use PETE containers. PETE is a high quality food grade plastic and is safe to use as long as the oil is used in a couple of months. We keep our oil in glass barrels before starting the bottling process where it is then transferred to PETE containers. We would like to remind you that BioNatal black cumin oil can be purchased in PETE or glass containers.