The differences aren’t merely aesthetic. Making the 2005 bottle required 14.6 grams of resin. The 2012 bottle uses only 9.2 grams of resin. (Plastic is a general term describing a moldable material. The plastic in many water and soft drink bottles is made of PET—a specific type of resin.) “We used to go through 600 million pounds of resin each year,” says Jeffery. “Today, even though we’re making more bottles because the business has grown, we use 400 million pounds of resin.”The lighter weight of the finished bottles also reduces the carbon footprint of the trucks that transport them.That’s less material waste (and, by the way, note the smaller label on the 2012 bottle, which conserves paper). It also leads to less energy waste. The resin for each bottle starts out shaped like a test tube, before a machine heats it and blows in air to stretch it out. With less resin in each bottle, it takes less heat and air to stretch the bottle into shape. “That’s an immediate 10 percent energy savings on the bottle itself,” says Jeffery. And the company’s machines produce 1,200 bottles every minute.
Read the whole article at:
http://www.slate.com/articles/business/operations/2012/06/poland_spring_s_new_bottles_why_are_they_so_thin_and_flimsy_.html
