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Everything to Know About the World’s #1 Material.

Packaging materials can be very different from one another. Some offer varying degrees of performance and clarity. PET offers infinite recyclability, and with a lower carbon footprint, it’s head and shoulders above glass and aluminum. Instead of ending up in landfills, PET bottles and containers can be reprocessed for reuse, over and over, in millions of products. It’s a huge advantage. Accordingly, packaging and plastics made of PET are all imprinted with the #1 recycling symbol.

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#1 In the world

PET is the world’s most commonly recycled plastic.

265 Thousand

jobs are created from PET production and recycling in North America alone.

1.59 Billion

pounds of rPET (recycled PET) is used in end markets annually in the U.S.

Liquids in bottles
Plastics by the Numbers.
Recycling #1

Polyethylene Terephthalate

Recycling #2

High-Density Polyethylene

Recycling #3

Polyvinyl Chloride

Recycling #4

Low-Density Polyethylene

Recycling #5


Recycling #6


Recycling #7


Beginning in 1988, all plastics were designated a number (1 through 7) to display, as defined today by ASTM International. The code number identifies what kind of resin each particular plastic product is made of. PET has been and always will be identified by the Resin Identification Code 1.

Patented in 1973, the PET plastic bottle has grown in popularity and versatility to become a leading choice for water and beverage bottles. With its infinite recyclability, environmentally positive profile and virtually limitless life cycle, PET can come back to serve us again and again—and not just as another water bottle.

Why PET Is the Better Option
Water bottle

While people are understandably concerned about plastic pollution, the impact of aluminum and glass containers hasn’t generated the same kind of headlines—but it needs some scrutiny too. Let us show you how they compare.

Greenhouse gases Water pollution Plastic liners

A February 2016 study on gas emissions by the U.S. Environmental Protection Agency, using the widely accepted Waste Reduction Model (WARM), shows that aluminum cans, even when manufactured with recycled materials, generate more tons of carbon dioxide (CO2) per ton of metal than do PET bottles or containers with recycled PET.

Graph of recyclability

Too many packages become litter and end up in our waterways. Aluminum cans have been discarded into the world’s oceans since their invention in 1959. But, unlike many plastics that float on or near the surface and remain visible to the naked eye, aluminum cans sink. The concerns are:

  • Cans accumulate on ocean floors, in delicate coral reefs, and in bays and riverbeds.
  • There, they are more difficult to see, collect and recycle.
  • Can tabs break off and are ingested by wildlife and fish.

All aluminum starts out as bauxite ore, which must be mined. Mining causes:

  • Deforestation
  • Land erosion
  • Pollution of nearby waterways

Aluminum must also be refined before it’s made into a can or container. The process uses caustic soda and other chemicals to extract aluminum from the ore. According to the EPA’s recent Bauxite and Alumina Production Wastes report, this process leaves behind residual byproducts that can find their way into soil and water, including:

  • Uranium
  • Thorium
  • Radium

Food and beverage cans have a plastic liner, often a bisphenol-A (BPA)–based epoxy, which forms a barrier between the product and metal, protecting against foodborne diseases. On its website, the Aluminum Association states its position on BPA: “The Association understands that ongoing research and study is taking place on the safety and efficacy of BPA, and will continue to monitor these developments closely.”

What about glass?
Greenhouse Broken glass

Glass containers create more greenhouse gases than plastic containers. According to, an academic publisher dedicated to the advancement of science, its 2008 Life Cycle Assessment (LCA) found that “glass jars produce between a quarter and a third more greenhouse gases than plastic jars.”

Glass, by nature, is heavier than plastic, weighing up to 10 times more. This makes it more costly to transport and requires more fuel to be consumed and/or more trips to be made, according to Increased emissions from either or both issues creates even more greenhouse gases.

Glass shatters if it’s dropped or damaged, which is a safety hazard for consumers. PET bottles and containers are flexible and will not shatter, whether in transit or when tossed into a recycling bin.

Broken glass is as dangerous for waste haulers and recyclers to handle and sort as it is for consumers. In fact, according to, many facilities are not equipped to remove tiny bits of broken glass from other recyclables. Broken glass can also contaminate other recyclables such as paper and cardboard. Today, more and more recycling companies do not accept broken container glass at all.