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Cherrybook.
Case Study Coffee Roasters

Guatemala Finca El Tambor

Washed Process

Washed

Cherrybook Index

50sparse

Evidence-of-quality score, not a cup score. Sparse signal: 1 of 7 signals on file. Methodology

Price position

$1.88/oz$22.50 for 340g

Typical band for this profile $1.25 to $2.00 (Guatemala washed single-origin lots (other named varieties, retail bags); USD listings; roast unlisted in stock). Where it sits

Catalog summary

A washed lot from Fraijanes, Guatemala, not yet indexed (1 of 7 signals on file) and priced inside 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

honeydew melon · chrysanthemum · toffee · oolong tea

  • Fruit
  • Floral
  • 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 Finca El Tambor by Case Study Coffee Roasters
Farm / Co-op
Finca El Tambor
Process
Washed
Altitude
—
Harvest
—
Weight
340g
Bag price
$22.50
Price / oz
$1.88/oz
Brew
—

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.

$1.88/oz

typically $1.25 to $2.00

Where it sits

21 Guatemala washed single-origin lots (other named varieties, retail bags); USD listings; roast unlisted in stock

typical band this lot

38th percentile of 21 Guatemala washed single-origin lots (other named varieties, retail bags); USD listings; roast unlisted in stock right now.

What moves this price

cheaper×1.00pricier
  • Roaster brand and sourcing×0.82
  • Washed process×0.95
  • Altitude not listed×0.97
  • Other listed varieties×0.97

At 340 g, this bag runs about 2% less 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.

Not listed by the roaster: roast level, altitude

Cherrybook Index (CBI)

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

50

Sparse signal

Confidence1 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 5% 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 88% so one thin signal cannot carry the score on its own.

The math on file: renormalized base 70.0 shrunk to 52.5 + bonuses = 50.

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

  • Roaster transparency
    Producer / farm / lot disclosure depth
    70/ 100% weight

Bonuses applied

  • Stale-stock demotion
    This lot has been listed in stock for an extended time; specialty coffee freshness degrades over weeks
    +-3

Sensory profileestimated

Acidity
4
Body
3
Sweetness
4
Balance
4
Clean
4

Comps & alternatives

Roast it yourself

Green coffee from Victor Calderon

Unroasted lots for home roasting. This listing and each lot below name Victor Calderon in Guatemala.

All green from Guatemala →

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 Case Study Coffee Roasters

On YouTube

Meet the roaster on camera

1 video

About the roasterShop tour

rating EVERY COFFEE shop in PORTLAND ☕️ *super trendy edition*

megan anderson

Watch on YouTube

This video covers Case Study Coffee Roasters; it is general roaster coverage.

Cherrybook summary of the video

This video features a shop tour of Case Study Coffee Roasters in Portland. The reviewer highlights the roaster's commitment to sourcing and their respectful relationships with coffee producers.

Inside this video

From megan anderson:

“They clearly have a very deep passion and knowledge when it comes to sourcing their beans.”
“They don't call them farmers, they call them producers, because they're giving them the credit of the fact that they are the production experts.”

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

Case Study Coffee Roasters

$1.88/oz· $22.50 a bag

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