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PET Recycling FAQs
Compiled below are some of NAPCOR's most frequently asked questions about PET recycling and reclamation and the answers to them. If you have additional questions that are not answered below, please contact NAPCOR. Also see: PET Safety FAQs.

> Should caps be removed from or left on bottles? Are caps and neck rings contaminants?
> What kind of baler should I use to bale PET?
> Is a downstroke baler OK?
> What kinds of pressures or forces should I specify to be able to bale PET?
> To get the most for my plastic bottles, how should I sort and bale them?
> Would I make more money on my PET if I grind it instead of bale it?
> Are amber PET beer bottles recyclable?
> Do barrier layers in PET bottles interfere with the recycling process?
> Are PET cups recyclable?
> Why can't PET microwave trays be recycled with PET bottles?
> Are light blue water bottles recyclable?
> Where can my company obtain recycled-content PET bottles for its products?
> Are there markets for mixed bales of PET and HDPE Bottles?
> Are there markets for mixed bales of all bottles?
> Are there markets for mixed loads of some PET bales and some HDPE bales?
> Are there times when I might not be paid for the PET I have collected?
> Should my state recruit its own PET market?
> Why does my local market only want PET soda bottles?
> Why is the recycling code so hard to see?
> How are recycled PET bottles made into a carpet or other products?  Is there a visual depiction of the process?
> Is it true that PET bottles make up one-fourth of all the municipal solid waste volume?
> Why should I serve beverages packaged in PET at my event/school/sports arena?
> Why do I see so many different types of beverages packaged in PET plastic in the marketplace?

Should caps be removed from or left on bottles? Are caps and neck rings contaminants?
Bottle caps and neck rings are typically made of polypropylene plastic which has a different specific gravity than PET.  This difference allows caps and neck rings to be mechanically removed in a float/sink process and recycled.  Although most caps and neck rings are not a contaminant to the PET recycling process, in some cases, removing them will help with compaction.
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What kind of baler should I use to bale PET?
The choice of specific baling equipment at your facility should be a function of your recycling program design and budget, specific market specifications, and facility throughput requirements.
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Is a downstroke baler OK?
Yes.  However horizontal balers are considered superior, as they have a motor ad piston/cylinder configuration that can achieve greater compression ratings than most downstroke (also known as vertical) balers.
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What kinds of pressures or forces should I specify to be able to bale PET?
Best Practices in PET Recycling
Please refer to NAPCOR's Best Practices in PET Recycling.
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To get the most for my plastic bottles, how should I sort and bale them?
Best Practices in PET Recycling
Please refer to NAPCOR's Best Practices in PET Recycling.
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Would I make more money on my PET if I grind it instead of bale it?
Not necessarily.  Grinding requires significant investment in capital equipment and is subject to strict and difficult-to-meet quality control requirements.
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Are amber PET beer bottles recyclable?
Yes.  Currently markets exist for separated amber bales and mixed colored PET bales.  Contact NAPCOR for information about amber reclaimers at information@napcor.com or contact the Association of Postconsumer Plastic Recyclers (APR) for a market list.
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Do barrier layers in PET bottles interfere with the recycling process?
At this time we are not seeing any negative effects from the current technologies.  Companies introducing barrier technologies are encouraged to participate in the Association of Postconsumer Plastic Recyclers' (APR) "Champions for Change" design for recyclability process.
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Are PET cups recyclable?
Yes, they are recyclable.  Check with your local market to see if it accepts PET cups.
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Why can't PET microwave trays be recycled with PET bottles?
They are physically and chemically different from PET bottles.  Currently there is no end use market for this type of plastic.
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Are light blue water bottles recyclable?
Yes.  Most markets currently accept light blue bottles.  They are typically mixed in with other transparent PET bottles in predominantly clear and green bales.  A list of PET reclaimers can be accessed on this web site.
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Where can my company obtain recycled-content PET bottles for its products?
A list of NAPCOR's bottle manufacturer members can be viewed on this web site.
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Are there markets for mixed bales of PET and HDPE Bottles?
Yes.  Contact the Association of Postconsumer Plastic Recyclers (APR) for a market list.
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Are there markets for mixed bales of all bottles?
Yes.  Contact the Association of Postconsumer Plastic Recyclers (APR) for a market list.
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Are there markets for mixed loads of some PET bales and some HDPE bales?
Yes, they are called split loads.  Contact the Association of Postconsumer Plastic Recyclers (APR) for a market list.
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Are there times when I might not be paid for the PET I have collected?
Post-consumer markets are dependent on quantity, quality, market conditions and distance to market.  PET is a commodity and is therefore subject to periodic fluctuations in the marketplace.
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Should my state recruit its own PET market?
The marketplace determines the location of reclamation plants based on current conditions including supply and demand for various geographical areas.  It is not NAPCOR’s position to either assist in recruiting reclamation facilities or determine where such facilities should be placed.  It is important to note that North American PET reclaimers purchase truckload quantities from all areas of the United States.
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Why does my local market only want PET soda bottles?
They may not be up-to-date on market conditions.  All PET bottles and jars are recyclable.  You may wish to forward this information to your market representatives or refer them here for more information.
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Why is the recycling code so hard to see?
Certain molds make it difficult to create a legible code.  In addition, the size and clarity of the recycling codes are not consistent in plastic coding laws enacted in various states.
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How are recycled PET bottles made into a carpet or other products?  Is there a visual depiction of the process?
NAPCOR has produced an educational video that includes an overview of the PET container creation and recycling processes.  If you would like a copy this free video, please visit the NAPCOR Store to place your order.
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Is it true that PET bottles make up one-fourth of all the municipal solid waste volume?
No.  PET bottles make up less than 2% of the volume of municipal solid waste.
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Why should I serve beverages packaged in PET at my event/school/sports arena?
PET plastic bottles are recyclable and will decrease the volume of waste generated at your venue, as well as potentially generate revenue from the collected containers.
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Why do I see so many different types of beverages packaged in PET plastic in the marketplace?
Consumers like PET packaging because it is lightweight, shatter-resistant and resealable - just right for people
on-the-go.
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News & Events
May 17, 2010
Using Recycled PET Saves Energy and Generates Less Greenhouse Gas: New Life Cycle Inventory Study for Recycled PET and HDPE
April 28, 2010
New Study Confirms Recycling Plastics Significantly Reduces Energy Use and Greenhouse Gas Emissions
April 2010
Final Report - Life Cycle Inventory of 100% Postconsumer HDPE and PET Recycled Resin from Postconsumer Content and Packaging (direct link to pdf file for download).
> More News
A guide to setting up PET recycling programs outside of the conventional curbside and drop-off programs.
> learn more