Cans are a difficult and delicate issue. I’ve discussed them here a few time.
There are 3 types of consumer reusable aluminium cans. Clean “bullet” aluminium. This is used for non-acidic beverage cans. Such as juice and water. They’re thick, bulky, and expensive.
Plastic coated aluminium. Used for non-acidic high pressure cans. Usually milk, yogurt, caned foods like fish and nuts, …
Tin plated aluminium. Thick cans Used for oven warm beverages like tea, cider, juice; thin cans for acidic drinks like soda, citrus juice, most energy drinks.
There’s also a small group called heavy tinned. This cover some very thick cans with thick tin plate. The large size venom and jolt energy drinks come to mind. Spiked cola and spiked ginger drinks as well, like Royal, Jack Daniels coffee, etc.
Make sure of your yard’s rules on putting stuff in cans. Some yards will allow you to put cap rings and safety seals in cans. Some won’t.
Each has slightly different value.
On non-pre-crushed That’s easy; shake a can, listen for clink. They crush them later or sell them uncrushed to a larger yard. Who eventually crushes them.
Some companies want them crushed for the best price. These are usually large yards that use magnetic sort balers or shredders. Many of these companies will run the can sort while you’re there. Too much stuffed in the cans they drastically reduce your price; and likely ban you. Keep in mind some yard bans you most will. Higher pricing for crushed cans is simple. It’s one less step for them.
The FDA has very strict guidelines for recycling to food grade contamination is measured in scales below parts per trillion.
A single battery in 500tn of melt can cost the company millions. Not only do they loose the entire melt for new cans and pie tins (it’s no food grade, after all), the company must disable the equipment. Conduct extensive cleaning. Contact the EPA and FDA to schedule inspections. Your one battery just shut down a company for weeks, months maybe.
Stuffing cans? It’s not just selfish and rude; it’s technically illegal.
Knowing that above, you understand tight control. If a melt is ruined; the bans will work their way down to the smallest yards. The value difference between trucking 80tn of beverage cans vs 80tn of clean aluminium is rather large.
Things to ask: what should/can be in cans and what can’t. Plastic labels on or off. Pet food can ok or separate. Food cans? Labels on or off. Crushed or not crushed.
Something to note: never crush a can that has labels. Even if removed. There will always be a risk of residue.
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