How do I know if selling mixed plastics in bulk is worth less than the time it would take to sort them properly?
Short answer: This depends on the volume involved and the specific price gap your buyer offers between sorted and unsorted plastic — for a genuinely large volume, even a modest per-kilogram improvement from sorting can add up to meaningfully more than the time is worth, while for a small amount, the total dollar improvement from sorting may not justify the effort; doing a quick calculation with your specific buyer's rates is the only way to know for certain.
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List Free →The calculation that actually matters
Ask your buyer for their specific sorted versus unsorted rates, then estimate how much total additional money sorting would earn you across your actual volume — compare that dollar figure against a realistic estimate of how long sorting would take you, valued at whatever your time is worth to you.
Why volume changes the answer significantly
A small per-kilogram price improvement multiplied across a large volume can add up to a substantial total gain, while the same per-kilogram improvement on a small amount might only be a few dollars — this is why the same sorting effort can be clearly worth it for one seller and clearly not worth it for another, purely based on volume.
A practical middle ground
Even partial sorting — separating out just the most common, easily identifiable resin types like clear PET bottles or HDPE containers, while leaving genuinely mixed or unidentifiable pieces together — can capture much of the price benefit without the full time investment of complete sorting.
How ScrapTrade Makes This Easier
Asking a ScrapTrade buyer for both sorted and unsorted rates upfront gives you the actual numbers you need to decide whether sorting is worth your time for your specific volume.
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