It is a common belief that the Coca Cola drink tastes different in glass bottles:
This leads to a skeptical question: does Coca Cola actually taste in a different way when served from a glass bottle?
It is a common belief that the Coca Cola drink tastes different in glass bottles:
This leads to a skeptical question: does Coca Cola actually taste in a different way when served from a glass bottle?
There is a chance.
This may be due to the chemical composition of various containers that Coca-Cola may come in:
But is it possible that the subtle variation in taste that some notice among aluminum cans, plastic bottles and glass bottles is more than just a psychological effect of their soda-consumption rituals?
Given that the formula is always the same, yes, according to Sara Risch, a food chemist and member of the Institute of Food Technologists. "While packaging and food companies work to prevent any interactions, they can occur," she says. For example, the polymer that lines aluminum cans might absorb small amounts of soluble flavor from the soda. Conversely, acetaldehyde in plastic bottles might migrate into the soda. The FDA regulates this kind of potential chemical contact, but even minute, allowable amounts could alter flavor.
Your best bet for getting Coke's pure, unaltered taste is to drink it from a glass bottle, the most inert material it's served in. Even that's not a sure bet, though. Coca-Cola maintains strict uniformity in processes in all of its worldwide bottling facilities, but it concedes that exposure to light and how long the product sits on store shelves may affect the taste. So yeah, the packaging might mess with Coke's flavor, but we'll still take it any day over New Coke.
Source: Popular Science
Glass bottled coke sometimes has cane sugar instead of corn syrup
I think we can trust Wikipedia for this
https://en.wikipedia.org/wiki/Mexican_Coke
Mexican Coke is bottled in a thick 355 mL or 500 mL glass bottle, which some have described in contrast to the American Coke plastic bottles as being "more elegant, with a pleasingly nostalgic shape
Coca-Cola claims that Mexican Coke exported to the United States is made with cane sugar, while some bottlers may use high-fructose corn syrup for drinks intended for sale in Mexico.[4] Therefore, while Coke labeled "Mexican" in the U.S. will be made with cane sugar, not all Coke sold in Mexico will.
I think it's easy to assume that corn syrup and cane sugar have distinct enough tastes, that some people come to the conclusion that coke tastes different out of glass