testing1x2x3
- Aug 7, 2020
- 2 min read

Call of the Wild - Onyx Coffee's Kenya Gachatha OT-18 Extraction & Review

Onyx Coffee Lab - Kenya Gachatha OT-18 Extraction Video & Review

BEAN SPECIFICATIONS

Roaster: Onyx Coffee Lab
Coffee: Kenya Gachatha OT-18
Type: Single Origin
Roast: Light
Origin: Kenya
Region: Nyeri
Processing: Washed & Raised-Bed Dried
Altitude: 1950 m
Variety: SL-28, SL-34
Flavor Profile: Nectarine, Wildflower Honey, Red Currant, Sugar Cane

TEST RESULTS

Time for another killer from Onyx Coffee Labs! The aromatic wildflower honey and nectarine punches straight through the bag. The bright zip of red currant is right in the front upon taking my first sip, but fades away. A juicy and bold nectarine quickly follows and becomes overwhelmed with an intense sweetness from the wildflower honey and sugar cane. These blend together perfectly into what reminds me of Hostess Peach Fruit Pie Filling and lingers long after. This is an overall pleasant and satisfying coffee. Espresso extractions are a little shaky as you can see if the video, but the taste far makes up for it. I also really enjoyed it brewed with the Kalita Wave 185, and the Stagg X Dripper.

EXTRACTIONS SPECS

Kalita Wave 185

Dose: 25 grams
Water: 400 grams
Grind: a little finer than a V60 grind
Temp: 205F
Brew Time: 3:00 - 3:30
George Howell Kalita Wave Brew Method

Espresso

Basket: 16/20g IMS Precision
Weight In: 18.5 grams
Weight Out: 30 grams
Niche Zero Grind Setting: 3.5 to 4
Temp: 195F
Extraction Time: 30 sec

PRESSURE PROFILING NOTES

Breville Dual Boiler 920XL "Slayer Mod"

Valve cracked open about 2mm
0 bars to 3 bars in about 15 seconds
Close valve a little as coffee starts to bead out
Hold between 3 to 4 bars for 5 seconds as the shot forms
Slowly open the valve and build up to 9 bars
Around the 30 second mark, close the valve slightly to compensate for puck erosion to about 8.5 bars
Close valve as shot time reaches about 30 seconds, and weight is about 30 grams

If you're interested in this coffee please click the photo below and pick up a bag or two!

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