"So as we change our bottling infrastructure, move into recycling and innovate, we also have to show the consumer what the opportunities are. They will change with us."
The drinks giant produces about three million tonnes of plastic packaging a year - equivalent to 200,000 bottles a minute.
In 2019, it was found to be the most polluting brand in a global audit of plastic waste by the charity Break Free from Plastic.
Ms Perez also said she agreed with calls for Coca Cola to reach its environmental goals sooner than 2030 - although she would not say whether she would step down if the plans failed.
"We have to reach this goal and we will - there's no question."