Exploring specialty coffee through science, scoring, and honest reviews. From origin to cup.
The dehydration myth, debunked with the actual research. Coffee is 98–99% water. Moderate daily consumption does not cause net dehydration — and the early studies that started this myth had significant methodological problems.
The problem with freezing coffee was never cold — it was condensation. The vacuum-sealed single-dose protocol both physicists actually use, step by step.
We tested 5 espresso grinders under $600 plus a stretch pick. The $139 hand grinder outperformed the $200 electric. Here's where to put your money.
CO2 outgassing inflates crema nearly 2x and drops extraction yield 1–2 points. Rao's fresh bean trap, and the 7–21 day rest window for espresso.
Gagné analyzed 300 particle size distributions across 24 grinders. Here's what the physics says about why the grinder — not the machine — decides your cup.
Turbo shots pull in 15-20 seconds at a coarser grind and hit 80% of max extraction with more aroma than traditional pulls. The Smrke 2024 and Hendon 2020 science, and how to dial one in.
Interactive tools and visual explorations that go deeper than reading
Three interactive studies in coffee science
Practical calculators and diagnostics for everyday brewing
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