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Cherrybook.
Onyx Coffee Lab

Ascent

WashedDark

Cherrybook Index

75Strong

Evidence-of-quality score, not a cup score. Confident: 3 of 7 signals on file. Methodology

Price position

$2.27/oz$25.00 for 312g

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

Cherrybook readers

★ 4.0from 1 exact-lot rating · 30% Cherrybook Index weight

Catalog summary

A washed lot from Colombia, indexed 75 on confident evidence.

Based on the listing and catalog evidence

Currently out of stock at the roaster. Subscribe to get an email when it returns.

Roasts to order · ships in ~1d

Your bag is roasted after you order; expect a short delay before it ships, but it arrives as fresh as the roaster can make it.

“All of our coffee for the cafes and for online orders are roasted to order, and we roast and ship our coffees Monday through Friday.” source ↗

Cherrybook last checked this listing 116 days ago.

Roaster’s notes

dark chocolate · prune · date syrup · orange

  • Fruit
  • Citrus
  • Cocoa and nut
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.

Ascent by Onyx Coffee Lab
Origin
Colombia
Producer
—
Farm / Co-op
—
Process
Washed
Altitude
1850 m
Varietals
—
Harvest
—
Weight
312g
Bag price
$25.00
Price / oz
$2.27/oz
Brew
immersion

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

Cherrybook Index (CBI)

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

75

Strong

Confident

Confidence3 of 7 signals on file

Enough independent signal to score at face value; no shrinkage applied.

How confidence affects the score

Coverage measures signal availability, not cup quality. This coffee has 53% 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 0% so one thin signal cannot carry the score on its own.

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

  • Cherrybook ratings
    Public exact-lot ratings from signed-in Cherrybook members
    75/ 57% weight
  • Reddit sentiment
    Sentiment across specialty-coffee discussion
    65/ 34% weight
  • Roaster transparency
    Producer / farm / lot disclosure depth
    45/ 9% 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

Base weighted score: 68.8 + bonuses = 75

Sensory profileestimated

Acidity
2
Body
5
Sweetness
4
Balance
4
Clean
3

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

7 videos · 181k combined views

Onyx Coffee Lab has 5 videos on their channel; 2 videos come from outside reviewers (Seattle Coffee Gear, Whole Brain Coffee).

From Onyx Coffee Lab

Coverage from others

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Onyx Coffee Lab

$2.27/oz· $25.00 a bag

Out of stock