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Glass Making Process

HOW GLASS CONTAINER IS MADE

The Glass Recipe

O-I BJC Glass Malaysia uses all natural raw materials - silica sand, limestone, soda ash and recycled glass (cullet), in its glass recipe or batch mixture. Once combined, these ingredients are transferred to the furnace for melting.

 

Melting

The furnace heats the batch mixture to about 1,500 degrees Celsius or 2,700 degree Fahrenheit, creating molten glass.


The 'Gob'

The molten glass is conditioned from the furnace, cooled to a uniform temperature and cut into "gobs". Each gob will form a single glass container.


 

Forming

Gobs are diverted into forming machines where they are molded into glass containers.



 

Annealing

Formed containers pass through the lehr, where they are reheated and gradually cooled to relieve any stresses in the glass. This conditioning step strengthens the glass containers and helps prevent breakages.


 

Inspection

Each glass container undergoes a rigorous inspection process to ensure the highest quality. Any rejected containers are re-melted as cullet.


 

Packaging & Shipping

Glass containers are stacked on pallets with corrugated sheets between each layer. The pallets are then strapped and shrinkwrapped to ensure stability before shipping it out.


 

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Last update January 2016
O-I BJC GLASS MALAYSIA Copyrights 2014 ALL RIGHTS RESERVED