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Cherrybook.
Dark Arts Coffee

Brew of Sacrifice — Rwanda

NaturalDark

Cherrybook Index

61sparse

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

Price position

US$3.83/ozGBP 25.00 for 250g

Typical band for this profile $2.12 to $3.43 (natural single-origin lots (other named varieties, retail bags); GBP listings in stock). Where it sits

Catalog summary

A natural lot from Nyamasheke, Rwanda, not yet indexed (2 of 7 signals on file) and priced above the typical band for its listed profile.

Based on the listing and catalog evidence

Buy on Dark Arts Coffee

Price and availability set by the roaster.

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.

We roast to order from Monday to Friday source ↗

Cherrybook last checked this listing today.

Roaster’s notes

red berry tea · roasted almonds · agave syrup

  • Floral
  • 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.

Brew of Sacrifice — Rwanda by Dark Arts Coffee
Farm / Co-op
Process
Natural
Altitude
1830–1950 m
Varietals
Red bourbon
Harvest
Weight
250g
Bag price
GBP 25.00
Price / oz
US$3.83/oz
Brew
filter, french_press, stove_top, aeropress, espresso

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.

$3.83/oz

typically $2.12 to $3.43

Where it sits

58 natural single-origin lots (other named varieties, retail bags); GBP listings in stock

typical band this lot

90th percentile of 58 natural single-origin lots (other named varieties, retail bags); GBP listings in stock right now.

What moves this price

cheaper×1.00pricier
  • Roaster brand and sourcing×1.21
  • Natural process×1.04
  • Rwanda origin×0.97

At 250 g, this bag runs about 2% more per ounce than a typical 306 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

61

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 68.9 shrunk to 60.9 = 61.

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

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

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 Dark Arts Coffee

Community reputation · Reddit

Well-regarded· sentiment 70/100

One thread lists Dark Arts Coffee among available roasters on Kofio. Another thread describes visiting Dark Arts as the most adventurous stop on a London trip, highlighting an espresso from China with lovely tea and floral notes.

espressoChina
Threads cited (2)

On YouTube

3 videos · 19k combined views

3 videos from Dark Arts Coffee's own channel.

Dark Arts Coffee

US$3.83/oz· GBP 25.00 a bag

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