After customers return used beer bottles to stores, they are sorted, separated and traded for new shipments from brewers. The bottles are sent to either a bottling plant or a recycler that turns them into cullet, and are then sent to manufacturers to be turned into new bottles. "It helps divert a lot of material from landfills, but in the process of doing that, and in the process of recycling and reusing the glass as cullet to make new bottles, the greenhouse gas savings and the energy savings associated with that are also huge," said O-I vice president of sales John Zanini. "So it's not just a recycling program. It's a greenhouse gas and an energy reduction program."

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