Do you know cola is made with a kola nut? The ingredient, which is from Africa, is the place the fizzy drink will get its caffeine from.
After all, some cola manufacturers maintain the opposite elements of their recipe top-secret. However why do drinks made by the identical firm appear to style completely different in a glass bottle, can, and plastic bottle?
Properly, in line with Rowland King, a director on the glass bottles provider, High quality Bottles, there’s actual science behind the distinction.
Why does cola style completely different in a glass bottle vs a can or plastic bottle?
First, there’s the chemistry of every materials to contemplate.
“Glass is chemically inert and non-porous, which suggests it doesn’t react with the drink or take up flavour compounds,” King mentioned.
“That helps maintain the style precisely as meant from the second it’s stuffed to the second it’s opened”.
Some specialists suppose the polymer lining of tinned fizzy drinks can result in a milder style, whereas it’s potential that acetaldehyde in plastic bottles might have an effect on the flavour.
And carbonation (bubbles) matter, too, King added.
“Fizzy drinks depend on dissolved CO₂ for his or her chew and freshness. Over time, plastic is barely permeable to fuel, even when sealed.
“Glass isn’t, so carbonation is often retained extra persistently, which may noticeably have an effect on the style and the way it feels to drink.”
The screw or crown caps generally used on glass bottles present a tighter seal, too, permitting much less CO2 to flee.
“Bottle form additionally comes into it,” King continued.
“A slender bottleneck concentrates aroma and slows down how shortly the drink hits the palate. That subtly modifications the flavour notion in comparison with ingesting from a large can opening or pouring right into a cup.”
Then, there’s temperature to contemplate
I personally love an ice-cold can of weight-reduction plan cola – typically referred to as a “fridge cigarette” – as a result of I really feel prefer it stays cooler and crisper than plastic bottles.
However King defined, “Glass bottles are thicker and have a tendency to sit back extra evenly and keep chilly a bit longer as soon as faraway from the fridge. Since temperature strongly impacts flavour notion, that alone could make the drink appear extra refreshing.”
After all, corporations attempt their hardest to make their product style as constant as potential throughout a spread of containers, King acknowledged.
However, he ended, “materials science is materials science. The container does make a distinction, particularly with carbonated drinks”.
