Brew smarter, not harder.

Real recipes from named experts — Hoffmann V60, Kasuya 4:6, Rao Spin, French Press. Set your dose, get grams of water, a pour schedule, and a bloom timer.

Microns, physical references (kosher salt, beach sand, sea-salt flakes), and per-grinder dials for six popular grinders.

Two questions about what you tasted, mapped to the Brewing Control Chart — so you know exactly which knob to turn. Strength vs. extraction, the right way to think about it.

Refractometer reading + dose + beverage weight → extraction yield %, plotted on the SCA Golden Cup chart with a specific verdict.

Punch in your tap water's TDS, hardness, and alkalinity. Compare to SCA targets and get a fix path — pitcher filter, Third Wave Water, or a DIY mineral recipe.

Pick the date stamped on your bag. See where you are on the degas curve and how to brew at each stage — peak window, fading, past prime.

Real cost per cup at home vs. your favorite cafe. The math is brutal — but it's good for you.

Plot extraction × strength to navigate where your cup actually is — and which knob to turn next.

Explore the SCA flavor categories interactively — tap anywhere on the wheel to drill in.

Light to dark, decoded — the Agtron range, what each level looks and tastes like, where it sits relative to first and second crack, and which brew methods it suits.