Found the video: https://www.youtube.com/watch?v=c7FoqR9oCfI
You knew it was working when the glass fogged up.
You might want some blast protection if you use a completely transparent one due to the explosion risk and flying glass pieces.
However, if you have a neutron imaging beamline you probably are motivated to make a cool demo.
Yes, as an example his lack of reviews on eureka grinders is very noticeable in comparison videos.
YMMV of course!
One thing to add: If you want to think even less in the morning. Just weigh the beans and water with a kitchen scale. 18 gr of beans, 160gr of (boiling) water (basically a 1:9 ratio regarding on the size of your basket).
Maybe that's exactly what you noticed. I cannot think how starting from already hot water vs. letting the water warm up and boil from the stove, could make any noticeable difference.
The idea is just that the beans don't get cooked as much by the heat ahead of the brew phase. For me it's made a big difference.
High-end (specialty coffee standard) commercial grinders produce a tighter variance amongst the ground coffee particles which leads to a way more even extraction, i.e. a more pleasant and balanced taste in the cup. Perhaps the most common model is the Mahlkonig EK43S, which is a ~$3,000 grinder.
Home grinders are far cheaper, in the range of ~$75–300 or so for popular ones, and tend to produce a broader variance of particle sizes which leads to big particles ("boulders") getting overextracted, thus imparting bitter flavors; and small particles ("fines") getting underextracted, thus imparting sour flavors. The higher quality and lighter roast your coffee is, the more noticeable the impact of the grinder is.
You don't have to take James Hoffmann's word for it at all, this is standard issue coffee grinder theory 101, which any specialty coffee professional would agree with. It's also easily testable at home, even if you haven't experiencend it in an experiment context. I took a short class on the theory of coffee once and the major experiments were comparing the same beans ground across different grinders (and then with or without use of a coffee sieve for further refinement) and the same beans across different brewing methods and techniques. The particle size distribution from the grinder is one of the most important variables in the whole process.
I don’t even know if the guy is American, just anecdata from my Facebook feed
now hol' up
in English, we have a suffix -ist for a person who does something: machinist, pianist, flautist. In Italian, they instead use the suffixes -isto or -ista to mean the same thing (which suggests English got "ist" from Norman French)
what does this particular -ista do? stands at a bar, that's why they are bar-isti. What's a bar, in Italy? well, "bar" not an Italian word, they borrowed the word from English.
Kind of weird this became a meme, since Italians are stereotypically supposed to really care about good coffee. My best guess is that for many households, the Bialetti is their version of Mr Coffee that they fire up in the morning to get out of the house before work and don't have the time or inclination to care about how it tastes. If they want something fancy and delicious that's what the 50 cafes within walking distance are for. That or their following a sub-optimal family tradition for how to brew with it.
Anyway, I only watched the video once but from what I recall the only thing that seemed especially over the top was the trivet to buffer the heat of the stove.