April 2, 2008 - ...biodegradable products from schools and other institutions served by the Iowa City-based distributor.Finding a product as inexpensive as polystyrene foam that can withstand hot food is the challenge, he said.Alan Schumacher, facility manager of City Carton Recycling in Cedar Rapids, said he is unaware of any local polystyrene recycler."It's a recyclable material," he said. "But the cost-efficiency to melt it down outweighs the profitability." Polystyrene foam...