This was teased today on Option-O's Instagram. It looks massive! I'm really really hoping for a 120mm single doser!

I've only picked up this hobby about 5 years ago so maybe I'm missing something but who's buying $175 conventional tampers when you can get really good leveling tampers for under $50.

Is it like driving a manual car? It's more enjoyable if you're good at tamping straight?

Please let me know if you know more.

What are the two knobs on the water level gauge on the right used for?

Hi all,
I'm interested in getting into coffee roasting purely as a means of producing good coffee in the varieties and taste profiles I want (I don't want another hobby). Are the PID controlled roaster options + proven roast recipes/profiles going to produce something...

Been killing me to keep this under wraps, but for the last few weeks I, along with a few others here, have been testing out Option-O's upcoming 98mm Mizen burrs that they designed for their P100 and upcoming Lagom 01 grinders.

At first glance, the burrs look similar to...

Well, yes... it has... but I don't understand why...

I am doing a frame off restoration of an old Astoria 2 group machine and it has the normal dual pressure gauge. I am reassembling the machine, and ran it a bit to check for leaks and test the electronics. And I noticed that...

Looks like we're getting a refreshed Linea Mini today! Refreshed design (reminds of Micra) with a new drip tray, shot timer, new two valve pre-infusion system, extended shot time (99s) and apparently comes with Micra's new portafilter as well.

Starting at € 4.150,00 (VAT...

Published yesterday in Nature Genetics

tl;dr: Arabica coffee plants came from Robusta and Eugeniodes a long time ago, and not through human intervention.

This work should help in developing future desirable varietals.

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29 minutes long;
- review of history for the first six minutes;
- 12:23-14:00 for why cone burrs should/must wobble, a.k.a., was James Hoffmann wrong in his Key review?

April 1, 2011 announcement of the Pharos: Pharos manual grinder by Orphan Espresso

I have an Iroast 2 that the top has cracked, and the chaff collector body has cracked. I put aluminum duct tape over the cracks, and it's been holding for a year. Anyway, I bought a Iroast 1st generation for parts, then today I found and bought another Iroast 2 for $30 so I...