Saaj Jars and Containers are made from high quality food grade PET material. Saaj PET products ensure safety, hygiene and quality for you and your family. Do not use hot water to wash. These Max containers are airtight, BPA Free,Freezer Safe, Stackable, Unbreakable Storage Food Storage Container .Suitable For - Pickle, Dryfruits, Cookies, Food, Wet and Dry food, Refrigerate food and Storing small non food products as well.