The aluminum utilized for beverage cans is predominantly 3004 and 3104 aluminum alloy, chosen because of its recyclability, durability, and lightness. According to the Aluminum Association, over 69% of all aluminum beverage cans worldwide are recycled, the highest percentage of beverage container material recycling compared to glass and plastics. The efficacy of this recycling process is one of the chief reasons why manufacturers prefer what type of aluminum is used in beverage cans for eco-friendly packaging solutions.
Aluminum cans are 100% recyclable, meaning they can be melted down and reused without losing their original properties. Unlike plastic, which degrades after multiple recycling processes, aluminum retains its strength, flexibility, and corrosion resistance. The recycling of aluminum uses 95% less energy than producing new aluminum from raw bauxite ore, reducing carbon emissions by up to 90%. A single recycled can saves enough energy to power a 60-watt light bulb for four hours.
The 3004 and 3104 aluminum alloy mix contains about 1% manganese and 1% magnesium, which enhances the strength and formability of the material without adding weight. A standard 12-ounce aluminum can weighs around 14 grams, but it can hold an internal pressure of 90 psi (pounds per square inch), which is critical for carbonated beverages. The extremely thin can walls at 0.097 mm help cut down on material usage while still allowing for recyclability.
Aluminum cans are in a closed-loop recycling process, meaning they can be used an infinite amount of times. Industry reports indicate that approximately 75% of all the aluminum ever produced is still in use today. Recycling consumes 60 days, meaning a used can could be back on store shelves in two months. This fast recycling cycle significantly reduces the quantity of new raw materials required, and thus, aluminum is an eco-friendly packaging material for drinks.
The shift to green packaging has caused major beverage companies like Coca-Cola, PepsiCo, and Anheuser-Busch to commit to using additional recycled aluminum. In 2022, Coca-Cola announced that it would increase the percentage of recycled content in its aluminum cans to 50% by 2030. This aligns with global sustainability goals to reduce plastic waste and greenhouse gas emissions.
Environmental activist David Attenborough once said, “We need to move beyond plastics and embrace materials that can be recycled forever.” Aluminum is not an exception, as its perpetual recyclability reduces environmental burden without compromising packaging strength. Choosing which form of aluminum is packaged in beverage cans ensures beverage packaging to be economical, durable, and eco-friendly, and hence aluminum is the optimal choice for a greener future.