Experiments into how to make the perfect cup:
A few years ago, I started using house guests as subjects in an experiment.1 My experiment was designed to test what variables in the coffee brewing process produce a perceptible improvement in coffee flavor. A frequent assertion is that numerous variables must be carefully considered to brew a good cup of coffee. I wanted to know if this premise was true as humans are really good at creating their own reality distortion fields.2 My main motivation for this experiment was to determine how I could brew the best coffee with minimal time and monetary investment. I didn’t want to buy a $11,000 Blossom Oneif I could avoid it…
A common belief among coffee pundits is that good coffee depends on good grinding. Specifically, coffee ground with a burr grinder purportedly tastes better because it grinds the beans more uniformly and doesn’t over-heat the grounds like traditional blade grinders…In total, 24 data samples were collected in these experiments. Each of the 3 burr grinder models performed comparably. Surprisingly, 13/24 or ≈54% of subjects actually preferred the blade grinder.
And so on. It’s a little wordy on the statistical tests (which is: good? bad?), but I think the moral of the story is just to buy good beans. And maybe an Aeropress.