Is it normal for paper mills to reject loads with excessive plastic or metal contamination mixed in?
Short answer: Yes — paper mills have real tolerance limits for contamination like plastic wrap, metal staples, or shrink film, and a load that exceeds those limits can be rejected outright rather than just discounted, since contamination has to be manually or mechanically removed before pulping and too much makes that uneconomical.
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List Free →Why contamination limits are stricter than they seem
Small amounts of staples or tape are routinely handled by mill processing equipment, but excessive plastic wrap, packing material, or non-paper items mixed into bales can jam or damage equipment, not just reduce yield — which is why mills set firm rejection thresholds rather than just sliding-scale discounts.
Common contamination culprits
Plastic shrink wrap and pallet wrap baled in with cardboard, shipping labels with heavy plastic laminate, foam packaging mixed into the load, and metal strapping are typical causes of rejected loads.
How to avoid a rejected load
A quick visual check before baling — pulling out obvious plastic film, foam, and metal strapping — is usually enough to keep a load within acceptable contamination limits and avoid the cost and hassle of a rejected delivery.
How ScrapTrade Makes This Easier
Being specific about contamination level in a ScrapTrade listing (“baled OCC, minimal plastic”) helps set expectations with buyers upfront, rather than a load being rejected on arrival after you’ve already paid for transport.
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