There’s nothing quite like taking the first cold sip of soda after opening a bottle. But have your taste buds ever noticed the slight flavor difference between drinking the same soda out of an aluminum can versus a plastic bottle or a glass bottle? And no matter how the soda drinks companies say that the taste is the same regardless of the way they package it. They claim the recipe of their drinks doesn’t change, but people always can detect a slight difference.
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Science Explanation
About this debated question, science gives a reasonable explanation for that.
The real reason why soda tastes a slight difference is because of the material of the package. The chemicals in aluminum cans and plastic bottles that alter its favor.
Sara Risch, a food chemist and member of the Institute of Food Technologists, says the formulas for soda stay the same whether they are in a can, plastic bottle, or glass bottle. “While packaging and food companies work to prevent any interactions, they can occur,”
Take, for instance, the polymer lining in Aluminum cans, which might absorb tiny bits of soda flavor. For som people, sensitivity to metal may also change the flavor of soda, as Rick Sachleben, a retired chemist with the American Chemical Society, told Business Insider. On plastic bottles, acetaldehyde can seep into soda. (Don’t worry, the FDA oversees the permissible amounts of potential chemical contact that occur to make sure it is incredibly small; nevertheless, this can still change flavor.)
Additionally, plastic is much more permeable to carbon dioxide compared to glass or aluminum. This means that the fizz will leak out of a plastic bottle faster, making it taste flat after a few weeks of storage.
The best and safest way to enjoy your soda is still by glass soda bottles. Glass is the most inert (less chemically reactive) material for soda packaging. This means that there is little to no chemicals in glass bottles that can change the taste of soda.
Compare Glass Bottle vs Aluminum vs Plastic Bottle
Aside from affecting the favor of soda drinks, the material of packaging makes a huge difference in terms of production, transport, and environment. Thus, let’s compare the three containers of soda drinks, to see which one is the winner.
1. Production
PLASTIC manufacturing starts off with oil and natural gas. And in order to get to the crude oil needed to produce plastics,we need to drill into the earth deeply. But drilling for oil in our pristine oceans and fracking for natural gas is destroying our environment — and endangering our health. Plastic bottles may be a cheaper option for soda packaging, but the cost of manufacturing them is environmental welfare.
Moreover, these raw materials are converted into smaller pieces, called monomers, and are then chemically bonded together to create long chains, known as polymers. These polymers are the plastic you see in the form of water bottles, food packaging, and much more. But the question is, when the plastic containers are empty, where should they go. As we all no, plastic is mostly nondegradable, this is no doubt harm our environment, and endanger our health.
GLASS— Liquefied sand, soda ash (naturally occurring sodium carbonate), limestone, recycled glass, and various additives make up the glass bottles that hold our beverages.
Glass, unlike plastic, does not contain any harmful chemicals such as BPA, phthalates, PVC or polycarbonate. So, nothing can leach into what you’re consuming from a glass bottle. When glass is recycled it gets turned into more glass, meaning it can be recycled over and over and never lose its integrity. Plastic, on the other hand, is downcycled and turned into something such as plastic lumber or carpet padding. It loses integrity with each use, and thus isn’t truly recyclable.
The only disadvantageous effect of glass-making is that it requires tons of fuel for melting sand. This produces a lot of carbon dioxide which is released into the atmosphere.
ALUMINUM CANS are almost always made from bauxite. Miners extract raw bauxite by way of open pits — essentially, scraping a pit into the landscape and leaving environmental destruction behind. Bauxite mining contributes to habitat loss and water contamination, as well as a slew of other negative environmental impacts, like increased erosion.
2. Transport
PLASTIC containers are very lightweight, so shipping them consumes less, and they can be packed together tightly.
GLASS BOTTLES are heavy–one big, undeniable, eco-unfriendly aspect of glass packaging. What’s more, glass is fragile, so shippers can’t pack glass containers into a truck as tightly as aluminum and plastic containers.
ALUMINUM CANS are small, lightweight, and airtight. Also, aluminum cans isn’t particularly fragile, so they can be packaged tightly, requiring less cardboard packaging for transport, meaning more room for more cans.
3. Where They End Up
The recycling rate of plastic is actually quite low, Only 6% of plastics are recycled each year; the rest of it is dumped into oceans and landfills-where its fate is uncertain — it can either find its way out and pollute our planet or sit in the landfill for up to 500 years before finally decomposing.
Glass bottles are 100% recyclable and can be recycled endlessly without loss of quality.
That’s why many soda companies use glass bottles since they can sterilize and reuse them. It’s the most sustainable soda packaging among the three.
Aluminum cans are also recyclable, but only 49.8% of aluminum cans are recycled by consumers per year. That means a lot of pit mining for bauxite to make new material, lots waste of enery.The good thing about it is that it can be recycled unlimited times.
Why Glass Bottle for Soda Is the Best
If you’re a beverage producer, then it’s clear that glass bottles are the best packaging option for your drinks.
First, glass bottles won’t affect the taste of soda. They don’t have chemicals that can leach into the drink and alter your drink’s signature taste.
Glass bottles are also easier to clean and reuse. You can collect your empty soda bottles from the consumers, sterilize them, and reuse them for the next batch of sodas. It can cut back your packaging costs significantly.
Additionally, glass is much more environment-friendly. A huge portion of plastics are thrown away and are currently polluting our oceans. Since glass is easier to recycle, it reduces your carbon footprint as a company.
Lastly, glass bottles are more attractive and aesthetically pleasing. Soda definitely looks tastier and more flavorful in glass bottles. Plus, you can choose between embossing your logo on the bottle (giving it a vintage look) versus having it printed (making it look more modern).
Conclusion
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