How is that possible if the rock solid theory underlying the free market promises us better products? /s
Look at coffee. The gradual shift from Arabica to more Robusta beans over a generation. Each year, an imperceptible shift was taken that, over decades, lead to coffee that tastes terrible. Opening the door for companies like Starbucks and a ton of gourmet roasters to compete.
But properly roasted, single origin coffee costs more than Chock-full-o'nuts. So you have options.
I've surrendered and just drink tea and chai now.
In fact their coffee doesn't taste like coffee, but more like mocha/hazelnut ice cream.
Much like how McDonalds, KFC, etc started by making decent food so did Starbucks. Add 40+ years of optimizing for the bottom line and the average person’s pallet and you get a very different product.
Cold brew is better, but not as much as afficionadoes sold me on. I can still taste the bitters.
For the job, there were five "espresso style" variants[2]. Although the "black no sugar" was too intense or me, none of them were bitter. I could make them bitter if I left one open too long or by heating one and letting it cool. There are only three variants now, and I miss the the discontinued "black lightly sweet" and "mochachino".
I've since experimented with making cold brew, servedhot or cold, with a little potassium bicarbonate. I've also tried some ready-made cold brews and lighter roasts. Darker roasts taste more burnt to me. Robusto is unsuitable. Arabica is better, especially if it has a good proportion of Kona in it. If it doesn't specifiy how much Kona, assume it's not enough to make a difference. I haven't tried pure Kona, even while in Hawai'i, because price.
[1] This was not planned. I was mistakenly given regular tablets instead of children's chewable…more than once, by different people. Not a recommended experience.
[2] I'm told Italy made them stop calling it that, because of some legal definition of what constitutes espresso.