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

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



  • 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



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.



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


  • 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



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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