Kenya Mamuto AB
Mamuto AB
WashedLight
Cherrybook Index
85Top tier
Evidence-of-quality score, not a cup score. Confident: 3 of 7 signals on file. Methodology
Price position
$4.25/oz$34.00 for 227g
this lot $4.25$2.06$3.29
Typical band for this profile $2.06 to $3.29 (Kenya washed single-origin lots (other named varieties, retail bags); USD listings; light roast in stock). Where it sits
Catalog summary
A washed lot from Kirinyaga, Kenya, indexed 85 on confident evidence and priced above the typical band for its listed profile.
Based on the listing and catalog evidence
Price and availability set by the roaster.
Cherrybook last checked this listing today.
Roaster’s notes
blackberry · blackcurrant · plum
- Fruit
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.

- Origin
- Kirinyaga, KE
- Producer
- Patrick Mathagu
- Farm / Co-op
- Mamuto
- Process
- Washed
- Altitude
- 1545 m
- Harvest
- 2025
- Weight
- 227g
- Bag price
- $34.00
- Price / oz
- $4.25/oz
- Brew
- filter
from the roaster’s storeread by Cherrybook from the listing“estimated” below = inferred, not stated
Price contextmodeled
A modeled range and current prices for comparable listings.
$4.25/oz
typically $2.06 to $3.29
Where it sits
28 Kenya washed single-origin lots (other named varieties, retail bags); USD listings; light roast in stock
typical band this lot
99th percentile of 28 Kenya washed single-origin lots (other named varieties, retail bags); USD listings; light roast in stock right now.
What moves this price
cheaper×1.00pricier
- Roaster brand and sourcing×1.09
- Kenya origin×1.07
- Light roast×1.06
- Washed process×0.95
At 227 g, this bag runs about 3% more per ounce than a typical 288 g bag; that is pack size, not the coffee.
How this estimate works
A statistical model, refit weekly across the in-stock catalog, estimates what a coffee with these listed attributes typically sells for per ounce. Each multiplier compares one trait against the average lot in this market; the roaster line covers brand and sourcing together, which this model cannot separate. Bag size is shown separately, priced at the rate observed across sizes of the same coffee, because it says nothing about the coffee itself. The distribution counts every in-stock listing in the comparison group, with at least 15 listings from three roasters and no roaster supplying more than 60% of it. Decaf, blends, variety segments, processing families and bag formats stay separate. Origin, roast and selling currency can broaden as the group label indicates. Prices are converted to USD per ounce; shipping and differences in tax treatment are not adjusted. The model reads listed attributes only: the quality of the specific lot in the bag is not observable, so a price above the typical band is not evidence of overpricing.
Cherrybook Index (CBI)
Evidence-of-quality score, not a cup score. Methodology
85
Top tier
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 43% 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, YouTube reviews, On-shop ratings, Cherrybook ratings
- 86/ 42% weightReddit sentimentSentiment across specialty-coffee discussion
- 80/ 47% weightCoffee ReviewMean score from coffeereview.com
- 80/ 12% weightRoaster transparencyProducer / farm / lot disclosure depth
Bonuses applied
- +2Sprudge press coverageThis roaster has been featured by Sprudge
- +1Editorial coverage clusterThis roaster has 3+ recent editorial mentions across trade press
- +-0Stale-stock demotionThis lot has been listed in stock for an extended time; specialty coffee freshness degrades over weeks
Base weighted score: 82.5 + bonuses = 85
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.
Reference · About the varietal & origin
About George Howell Coffee
Community reputation · Reddit
Cult favorite· sentiment 86/100
Two independent Reddit comments give George Howell Coffee strongly favorable but limited evidence. One home roaster said matching George Howell's roast quality was extremely difficult. Another said a frozen Borboya retained the coffee's integrity.
roast qualityfrozen Borboya
Threads cited (2)
- r/roasting · 11↑ · Freezing GREEN !?!
I've had frozen coffee from friends who roast/home roast as well as George Howell's Borboya. It's definitely possible to keep the integrity of the coffee intact. Vac pack + a freezer that sits at 0F or below that doesn't get opened often is the best way to go.
- r/roasting · 8↑ · Procuring high-quality green beans
...it's not very hard to home roast and get "good coffee". However, my experience is that it is extremely hard to match what you can buy from Verve, George Howell, etc, and that you should not get into roasting with that goal in mind. Equipment vs. Technique, I'll say both. Obviously, if I had the same equipment as Ver
Press · Sprudge
- George Howell: The Sprudge Twenty Interview2025-11-18·sprudge
An interview with 2025 Sprudge Twenty inductee George Howell.
- 30 Minute Acid Trip: George Howell, Snapchill, And The Quest For Cold Coffee Acidity2024-05-07·sprudge
A closer look at the partnership between Snapchill and George Howell Coffee.
On YouTube
Watch the reviews
About this coffee
George Howell: The Godfather of Specialty Coffee
The Coffee Show with Kirk Pearson · 1.1K views on YouTube
Watch on YouTubeWhat the reviewer said
From The Coffee Show with Kirk Pearson, discussing Kenya Mamuto AB:
“And we're currently drinking some Mamuto estate. And it tastes phenomenal.”
“We've had it for a few weeks now. We're still aiming to get the body, the sweetness, and the blackberry at their height, all of them, at the same time.”
Tasting notes mentioned: blackberry · sweetness · body
Explore the videos
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