In the 1960s, there was an overabundance of milk. To keep this excess fresh, glass bottles were used instead of paper cartons.
The reason for using glass bottles instead of paper cartons is simple: glass keeps milk fresher for longer than any other packaging material currently available. In addition, glass is the most sustainable material in commercial use today. Milk bottles were more expensive than paper cartons, but they were also reusable so consumers did not have to throw them away after each use like they would with a paper carton or plastic container.
Glass bottles are airtight, so the milk inside is kept fresh for longer. They can be reused and recycled! It's also a better choice for the environment than plastic. Glass doesn't contain any chemicals that leach into your food or drink, like BPA (bisphenol A) does in plastics. Plus, glass bottles are more durable than plastic ones—they won't crack or break if you drop them on the floor of your kitchen!
The popularity of pasteurization made it possible for more people to enjoy fresh milk. To keep it fresh, the process involves heating the milk to a very high temperature (160 degrees Fahrenheit), then rapidly cooling it down. This kills all bacteria in the product, which makes it safer and last longer than unpasteurized or raw milk—a good thing when there was an overabundance of this precious substance that needed to be kept fresh.
Once pasteurization became common practice, farmers began producing large quantities of milk near cities where they could sell it at higher prices to consumers who didn’t want or couldn’t transport their own dairy products home from farms further away
You may not have noticed, but milk has been quietly moving back to glass bottles. In fact, the market for glass milk bottles has expanded by 50% since 2000.
Why? Because there are many reasons why glass bottles are better than plastic ones and this is one of them: they can be recycled indefinitely without losing any quality or purity. Plastic can only be recycled once before it becomes unusable and must be thrown away.
Glass is also non-toxic and doesn't leach chemicals into food like plastic does; plus it's a very durable material so you don't need to worry about broken glass in your lunchbox! The recyclability rate for glass is 99%, so even when your bottle does break down over time (and with enough use) you can still recycle it! This means that less energy is used during production processes which reduces greenhouse gas emissions from manufacturing plants around the world."
In the 1990s, milk was packaged in paper cartons. The plastic lining on those cartons meant that they could be recycled at the end of their short lives. But glass bottles were more expensive than paper ones, so why did we return to them?
The answer is simple: glass bottles were reusable. They could be washed out and used again after being returned to the store where they were purchased, or even reused by consumers themselves as regular glasses for drinking water or juice. Paper cartons were not reusable—they had no value outside of their single use as packaging for one product (milk).
Although glass milk bottles are no longer used in most parts of the world, they were once a very popular way to store milk. People drank milk much more often back then than they do today, which means there was an overabundance of it that needed to be kept fresh. Glass bottles were able to do just that while also being environmentally friendly and sustainable compared to other materials such as paper cartons or plastic pouches.