Is it worth separating aluminium foil from other aluminium scrap given how little it weighs?
Short answer: Yes, if you can. Foil is extremely thin, so a large share of its weight oxidises and burns off as dross during remelting — some estimates put the loss well above what thicker aluminium loses. Mixing foil into a bale of heavier aluminium can drag down the blended price, and many yards pay noticeably less for loose foil, or won't take small quantities at all.
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List Free →Why thin gauge is the whole problem
The thinner a piece of aluminium is, the more of its total mass is surface area relative to volume — and oxidation happens at the surface. When foil is remelted, a much larger proportion of it oxidises into dross (the skimmed-off waste layer) compared to a thick extrusion or casting, where most of the material is protected below the surface. That yield loss is real cost to the buyer, and it’s reflected directly in a lower price for foil.
What “contamination” often really means here
A lot of household foil also isn’t pure — it’s frequently stuck to food residue, paper backing (like some packaging), or other material, which adds further loss and handling cost on top of the thin-gauge problem itself. Clean, food-residue-free foil is worth more than foil that still has wrappers or grease on it.
Practical takeaway
If you only have a small amount of foil, it often isn’t worth a special trip — many councils accept clean foil in household recycling instead. If you’re accumulating a genuinely large volume (a workshop or catering operation, for example), keep it separate from denser aluminium scrap rather than balling it in with heavier pieces, since a buyer who spots foil mixed into a “clean aluminium” load may reprice the entire lot down rather than just the foil portion.
How ScrapTrade Makes This Easier
For a genuinely large foil volume, listing it as its own lot on ScrapTrade — rather than folding it into a general aluminium listing — lets buyers who specifically handle thin-gauge material bid on it directly, instead of averaging it into a lower blended offer.
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