What are the recycling methods for aluminum?

Aluminum recycling methods primarily include mechanical recycling and re-melting. Mechanical recycling involves cleaning, shredding, and sorting aluminum waste before reprocessing it into new products. Re-melting involves melting aluminum scrap and then casting it into new aluminum products. This process is energy-efficient, as it requires only 5% of the energy needed to produce aluminum from raw materials. Additionally, aluminum can be recycled indefinitely without losing its properties, making it one of the most recyclable materials.