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Cherrybook.
Onyx Coffee Lab

Guatemala Hermanas Mendez

WashedMedium

Cherrybook Index

65Noted

Evidence-of-quality score, not a cup score. Sparse signal: 2 of 7 signals on file. Methodology

Price position

—$0.00 for 312g

Price position appears once the price model has scored this lot.

Catalog summary

A washed lot from San Pedro Necta, Guatemala, indexed 65 on sparse evidence.

Based on the listing and catalog evidence

No longer available at the roaster

Last verified 117 days ago.

Roaster’s notes

orange · brown sugar · pecan · red apple

  • Fruit
  • Citrus
  • Cocoa and nut
  • Sugar and spice
Open the flavor wheel

Mapped from the roaster’s tasting notes to the SCA flavor wheel; Cherrybook’s interpretation of the stated notes, not the roaster’s own categorization.

Guatemala Hermanas Mendez by Onyx Coffee Lab
Farm / Co-op
—
Process
Washed
Altitude
1850 m
Varietals
Bourbon,Caturra
Harvest
—
Weight
312g
Bag price
$0.00
Price / oz
—
Brew
filter

from the roaster’s storeread by Cherrybook from the listing“estimated” below = inferred, not stated

From the editors

This lot is no longer available at the roaster.

We last reached the roaster’s page for this coffee 117 days ago. It now returns a not-found or members-only response, so we’ve archived the buy link rather than send anyone to a dead page. The notes, sensory chart, and editorial context below remain useful as a record of what this lot offered.

Cherrybook Index (CBI)

Evidence-of-quality score, not a cup score. Methodology

65

Noted

Sparse signal

Confidence2 of 7 signals on file

Score is heavily shrunk toward 50; treat as a placeholder until more sources arrive.

How confidence affects the score

Coverage measures signal availability, not cup quality. This coffee has 23% of the signal universe on file. Missing sources are dropped, remaining weights are renormalized, and the result is shrunk toward a neutral 50 baseline by 43% so one thin signal cannot carry the score on its own.

The math on file: renormalized base 66.1 shrunk to 59.3 + bonuses = 65.

Missing: SCA grade, Coffee Review, YouTube reviews, On-shop ratings, Cherrybook ratings

  • Roaster transparency
    Producer / farm / lot disclosure depth
    70/ 22% weight
  • Reddit sentiment
    Sentiment across specialty-coffee discussion
    65/ 78% weight

Bonuses applied

  • Sprudge press coverage
    This roaster has been featured by Sprudge
    +2
  • World Coffee Championships finalist lot
    This roaster sourced a World Coffee Championships finalist routine
    +3
  • Editorial coverage cluster
    This roaster has 3+ recent editorial mentions across trade press
    +1

Sensory profileestimated

Acidity
4
Body
3
Sweetness
4
Balance
4
Clean
4

Comps & alternatives

Tasting flight

Compare this with three more lots selected from the catalog.

Brew a set side-by-side. The picks vary along axes that pair with this lot; origin, process, roast, or producer; so you learn the difference, not just drink four good cups.

Build the flight

Reference · About the varietal & origin

About Onyx Coffee Lab

Community reputation · Reddit

Mixed reviews· sentiment 65/100

Three Reddit contributions give a mixed-to-positive view of Onyx Coffee Lab. One poster said a $40 Onyx bag was not better than coffee they roasted at home. In another thread, a commenter called Monarch their favorite from Onyx and an easy first recommendation for espresso. A home roaster wrote that an Onyx Kenyan AA control sample was much more uniform in roast degree and bean size than their own batch, and said the consistency made them jealous.

$40 bag compared with home roastingMonarch espresso recommendationroast degree and bean size uniformity
Threads cited (3)

Press · Sprudge

On YouTube

Meet the roaster on camera

11 videos

From the roasterBrew guide

Onyx Coffee Lab - Hario V60 Brewguide

Onyx Coffee Lab · 89.2K views on YouTube

Watch on YouTube

This video covers Onyx Coffee Lab; it is general roaster coverage.

Cherrybook summary of the video

This video is a brew guide for the Hario V60, presented by Onyx Coffee Lab. It explains the unique design features of the V60, such as its cone shape, thick ridges, and large opening, and how these factors influence the brewing process and flavor profile.

Inside this video

From Onyx Coffee Lab:

“The Hario V60 is a really popular brew method, and it's a really great brew method. It's great for beginners, it's used by professionals.”
“The combination of that open airflow and the large opening is going to create a really fast flow rate.”

Explore the videos

Videos by their credited creators. Playing a video connects to YouTube. Privacy