𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 : 𝐎𝐧𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐛𝐢𝐠𝐠𝐞𝐬𝐭 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 𝐚𝐫𝐨𝐮𝐧𝐝 𝐫𝐏𝐄𝐓 𝐭𝐨𝐝𝐚𝐲 𝐢𝐬 𝐧𝐨𝐭 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧

𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞

𝐎𝐧𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐛𝐢𝐠𝐠𝐞𝐬𝐭 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 𝐚𝐫𝐨𝐮𝐧𝐝 𝐫𝐏𝐄𝐓 𝐭𝐨𝐝𝐚𝐲 𝐢𝐬 𝐧𝐨𝐭 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧.

It’s verification.

How do you prove the actual recycled content in a PET bottle?

With the EU’s PPWR already in force and becoming applicable from 2026, this is quickly becoming a critical issue.

I recently came across a study published in Nature that proposes a method to detect recycled PET content with up to ~97% accuracy!

What’s particularly interesting is how this is achieved:

The study combines multiple analytical techniques such as:

– triboelectric response analysis

– dielectric / impedance spectroscopy

– capacitance measurements

– and mid-IR spectroscopy (similar to FTIR)

Together, these methods can detect subtle differences in material structure and processing history — enabling a much more accurate estimation of recycled content.

If this becomes scalable, it could fundamentally change how the industry approaches compliance, supplier validation and trust across the value chain

Because suddenly, recycled content is no longer just declared — it can be verified.

source :Erdem Kazan

#rPET #Plastics #Packaging #Recycling #CircularEconomy #PET