Aluminium is one of the most abundant elements on earth, and since we found out how to mine and put it to use efficiently in the early 1900's it has gone on to infiltrate nearly all aspects of modern life. The reason for this is that aluminium possesses numerous traits and qualities which make it ideally suited to a wide range of purposes; it is light, strong, durable, malleable, non-magnetic, the list goes on!
When you think of aluminium packaging, the most prominent example that will occur to people will be aluminium cans. This is for good reason, as it is probably the one we come into contact with the most, with most, at the very least, seeing one on a daily basis; which is funny when you think that they have only been around for 42 years.
The first two of the aforementioned qualities help to ensure that the container's contents are secure and safe from external contamination; basically nothing can get in and nothing can get out. This may also work to help prolong the shelf-life of whatever food or drink stuff is being held inside.
Regarding its recyclability, aluminium is 100% recyclable and can be reused and re-purposed over and over again, without the material's qualities diminishing. This is good news considering that 90% of all drink cans in the UK, and around 50% of America's, are made from aluminium.