NEW YORK (AP) — New Yorkers are wondering what a plastic foam-free city might look like after Mayor Michael Bloomberg proposed an all-out ban of the food packaging product.

Industry groups say a ban on polystyrene foam would mean more expensive alternatives, like aluminum containers.

The mayor says polystyrene foam is bad for the environment and expensive for the city to process.

Bloomberg’s proposal has to be drafted into legislation and voted on by the City Council before it becomes law.

City Council Speaker Christine Quinn supports it. But a similar proposal has stalled in the City Council in recent years.

Fish Yu is a part-time manager at the Chinese restaurant Ollie’s on 42nd Street. He says his eatery would have to pass on the extra cost of plastic foam alternatives to customers.