FAQs

Our most frequently asked questions

Have a question about Consol or glass products in general? There’s a good chance you’ll find the answer here, among our most frequently asked questions, but you are welcome to contact us with any questions or queries you may have, if you prefer.

Glass preserves the taste and freshness of its contents, plus it is a healthier choice, because it’s free of BPA and other synthetic chemicals.

Additionally, it has a longer shelf life than most other forms of packaging, is less damaging to the environment during the manufacturing process, is 100% recyclable, and let’s just be honest here… it simply looks better. Read more here

Yes, up to 70% of the glass that is used to manufacture each bottle is recycled glass, called cullet. Read how, here

All manufacturing processes produce some waste material, but the glass industry produces less than most. We’re always working to find new ways to drive waste reduction at Consol Glass, and we do so through recycling banks in cities around the country, waste-wise manufacturing processes, and our involvement on the board of The Glass Recycling Company (TGRC). Learn more here

Glass is made from a combination of sand, soda ash, limestone, and traces of other natural ingredients like iron and carbon. Recovered glass, otherwise known as cullet, is used too. These raw materials are stored in large silos, from where they are measured and delivered to batch mixers, and then to the furnace which is heated to approximately 1,500°C.

It takes around 24 hours for the mix to be converted into molten glass before it is sent to the refiner area to be cooled. After that, it is sent to the bottle-making machines, where different processes and moulds are used to produce different glass products.

You can read more about the glass manufacturing process here.


Consol has invested an estimated R240 million in equipment and cullet processing plants, to facilitate the glass recycling process as part of our Corporate Social Investment (CSI). Our batch houses are among the most modern in the world, using leading-edge technology. All glass containers manufactured by Consol undergo multiple tests and inspections to ensure they comply with the regulations of the International Organization for Standardization, as well as our own strict quality standards. Find out more

In January 1944, a young Johannesburg finance house acquired a pioneering glassworks company in Pretoria, but it only officially emerged as "Consolidated Glass Works Limited” in May 1946. Click here to read more about our rich history.

Our products are available at selected retail outlets and our Consol stores, based in Woodmead, Gauteng and Stellenbosch, Western Cape. You can refer to the Contact Us page or The Consol Shops page for further details on how to find us or get in touch. We also have a Product Catalogue tab where you can browse products and make enquiries.

Yes, Consol has a Level 4 B-BBEE STATUS with a 100% preferential procurement score. You can view our latest certificate, here.

Bloggers, members of the media and other potential collaborators should contact our media representative for further information.

Click here to download our Returns Policy document.


If you have any other queries on pricing, exports, sponsorships, CSI, donations, recycling, business opportunities, procurement, or anything else not covered here, please visit our Contact page to send an enquiry.