It started, as these things do, with a perfectly reasonable observation: my morning coffee was fine, but it was never as good at home as the one place down the road that I'd quietly become loyal to. I assumed it was the beans. I bought better beans. Marginally nicer, still not it.
Then someone told me the thing nobody tells you when you're buying a coffee machine, which is that the grinder matters more than almost anything else. A pre-ground bag and a cheap blade grinder produce coffee dust of wildly uneven size, and uneven grounds extract unevenly: the fine bits go bitter while the coarse bits are still watery, and you taste both at once. The machine can only work with what you feed it.
So I read. And this is where the trouble starts, because coffee is one of those hobbies that looks like a single purchase and is in fact an infinite corridor of doors. Burr grinders, conical versus flat, stepped versus stepless adjustment, dose consistency, retention, static cling on the grounds. Within an evening I had opinions about things I hadn't known existed that morning, which is the precise sensation I get at the start of every new hobby and have learned to be slightly wary of.
I bought a modest hand grinder in the end, deliberately, before the corridor swallowed me. A conical burr, a dial to set the grind, and a satisfying amount of cranking before breakfast that I've decided counts as exercise. The coffee is genuinely better. Whether it's three-doors-down better I'll never honestly know, because at this point I'm tasting my own effort as much as the coffee. Which is, I suspect, most of the point of any hobby.