There are _plastic_ tea bags? Really?
Didnt know that we reached that level of degredation already! :-D
Another example comes to my mind: In lot of European conutries, at "cheese corner/bar" in the supermarket, every time a piece of cheese is cut, they are removing the foil, cutting the cheese, and then re-packing it in new foil after that - and this for every chees bar in every supermarket: How much kilometers does just one branch waste per year?
That study is interesting because they used SEM to image the plastic afterward, and you can see how the plastic surface has literally been torn up on a microscopic level simply by touching hot water.
Plastic has a low-energy surface, which means it doesn't take much energy to tear it apart. Even Brownian motion is enough, which is pretty wild.
Is there any real difference between the more expensive shelf places ("on eye height") than the more cheap one?
Id suspect its just intelligent re-labelling/re-packing for different brands?
Or is there really a difference in the quality/taste of the expensive ones?
In my country, it doesnt matter if i spend 2 bucks or 5 bucks in the supermarket
If we are still talking about tea, then of course there are huge differences. And the best tea is not packaged in individual tea bags (also it's not sold in supermarkets unless it's a country with a very high tea culture).
So at the low end you would have tea that is grown with lots of chemicals, plucked by machines or by badly paid workers, industrially processed in high quantities, sold as bulk on international markets. While on the highest end you would have artisanal small-batch tea with no chemicals involved, possibly grown in some special way like the tea bushes shaded from the sun or hundred years old tea trees in forested areas, processed by hand so the leaves are not broken etc... And all of this is reflected in the taste.