"Glass feeding bottles" are the more eco-friendly option as it is made without the use of petroleum. Glass bottles are recyclable. Foreign manufacturer companies of these products are required to apply for certification from Bureau of Indian Standards (BIS). Team aleph assures you the best of the quality services for all kind of technical certification and testing equipment. You may visit www.alephindia.in or for more information feel free to reach us at info@alephindia.in