What are recycled plastic bottles for?
But this time I not only want to tell you, dear reader, what packaging represents as a market strategy, I want to give you a historical overview of its evolution and along the way we will analyze the reasons for its evolution, which, by the way, will continue at an accelerated pace.
The second owner of the Coca-Cola brand, the visionary Asa Candler, quickly understood that packaging was part of the product’s language and set about the task of perfectly defining the bottle he wanted for his brand. Thus, the Coca-Cola “contour” package was created very early in the brand’s history.
In the beginning, the bottles were capped by a mechanical system based on pressure. This required a kind of wire spring, which pushed on a cork and sealed the bottle. This system was changed by large companies at the beginning of the 20th century. For example, the Cuauhtemoc Brewery introduced cork stoppers in its products in 1903.
For the large bottlers, it was easier to create their own display cases, so they no longer depended on a third party for their containers, which also lowered their input costs. But the great majority of regional bottlers continued to depend on showcases.
Characteristics of a water bottle
If the garbage truck passes by the block we apparently dispose of the package individually, although it is still a collective problem. But what happens where there is no municipal collection service? It is stored, buried or burned… in any case, it pollutes and affects people, animals and ecosystems in many ways.
Although PET is not considered a hazardous material, excessive consumption of products packaged in PET containers can cause long-term respiratory and skin problems due to the action of “phthalates”, chemical compounds added to make the plastic more flexible and durable, which can be easily released, for example, at high temperatures. When released into the liquid and ingested, these particles accumulate inside the body.
It should be remembered that most of the high biodiversity areas are surrounded by rural populations, far from the municipalities. In most of them there is no garbage collection service, although even in the most remote areas, delivery trucks from companies that sell bottled beverages (and many other packaged products) arrive and, of course, they are not responsible for the waste they generate. What do the communities do with the PET? They “save” it, bury it or burn it. As we have seen, any option is a problem.
Types of carbonated beverages
The first step that led to the development of modern soft drinks took place at the end of the 18th century, when the term “soda” began to be used to refer to a beverage made from water, sodium bicarbonate and carbon dioxide.
Among the different kinds of soda, acid water was usually recommended for problems such as heartburn, indigestion or even gout. In turn, seltzer was used, due to its pleasant taste and its medical properties, to reduce fever, treat stomach ailments or nervous disorders.
The notoriety that these drinks were acquiring gave rise to the fact that in 1783, a young amateur scientist, Jean Jacob Schweppe, perfected the ideas of Priestley and Lavoisier to develop their industrial manufacture and, later, to elaborate a flavored carbonated drink with quinine known as “tonic”.
At the same time, animal-drawn carts for the transport and distribution of beverages were replaced by motor vehicles, crates were developed that allowed several bottles to be transported at once, and automatic soft drink dispensers were installed in stores.
What plastic bottles are made of
By means of the controlled addition of a drop of liquid nitrogen, the inertization of the headspace of the container can be established to avoid oxidation processes of the product, this technique allows to pressurize the container increasing its mechanical properties.
The addition of high purity carbon dioxide allows the production of water, beverages and beers of excellent quality, the development of CO2 applications has played a leading role in the pleasant sensation of bubbles on the palate.
Nitrogen and carbon dioxide prevent metabolic degradation of the juices due to a possible increase in temperature, and thanks to their great heat exchange capacity, they allow a fast and controlled cooling of the products.
In transport and storage, the atmosphere conditions directly affect the shelf life of fresh products. By using Nitrogen Gas, it is possible to generate a controlled atmosphere, managing the factors oxygen, temperature, humidity and pressure of the atmosphere, managing to delay the speed of deterioration of the product.