Pour-Over Brew Guide
A V60 pour-over coffee timer and ratio calculator, designed and built by Luis Ramirez. Free, runs in the browser, nothing uploaded anywhere.
Design meets craft
Good design and good coffee both come down to the same thing: precision, process, and paying attention to the details most people skip. I built this pour-over coffee timer as a side project that puts two daily obsessions in one place: interaction design and brewing a better cup. Every ratio slider, countdown, and haptic nudge is a small UX decision, the same kind of thinking I bring to client work at Cast Iron LA.
1 : 15 Coffee : Water
I know my…
20g
Your Brew
20g
300g
10.1 fl oz
300 ml
40g
50g
discardPour Breakdown
Bloom wateris 2× coffee weight. Saturates grounds and lets CO₂ escape before the main pour.
Rinse water removes paper taste and pre-heats your vessel. Always discard before adding grounds.
A vigorous bloom = fresh beans. Roasted within the last 2–4 weeks is the sweet spot.
Brew Session
Roast
202°F / 94°C
Medium, Like rough sand
Hand grinders: err coarser. Adjust finer next brew if needed, never the other way first.
Before you brew
Notes on the Craft
Built by Luis Ramirez, art director and co-founder of Cast Iron LA. Read the blog or get in touch.