How is carbon dioxide supplied to soft drink manufacturers?

Carbon dioxide is supplied to soft drink manufacturers in two primary forms:

• Solid form: As dry ice.1
• Liquid form: Stored in heavy steel containers under approximately 1,200 pounds per square inch of pressure. Alternatively, if the liquid carbon dioxide is held under refrigeration, it is stored in lightweight steel containers at a lower internal pressure of about 325 pounds per square inch.1

Once at the facility, the gas is used for carbonation, a process where the liquid is chilled and cascaded over plates in a pressurized enclosure to ensure the water absorbs the gas.1