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Cherrybook.
North Star Coffee Roasters

Peru Finca Churupampa Churupacha

WashedDark

Cherrybook Index

50sparse

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

Price position

US$2.11/ozGBP 14.00 for 250g

Typical band for this profile $1.63 to $2.61 (washed single-origin lots (other named varieties, retail bags); GBP listings; dark roast in stock). Where it sits

Catalog summary

A washed lot from Cajamarca, Peru, 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.

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 our coffee is roasted to order which means it is packed and dispatched before it has had time adequately 'de-gas'.” source ↗

Cherrybook last checked this listing today.

Roaster’s notes

rooibos tea · red plum · brown sugar

  • 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.

Peru Finca Churupampa Churupacha by North Star Coffee Roasters
Farm / Co-op
Finca Churupampa
Process
Washed
Altitude
1800–2000 m
Varietals
Caturra,Typica
Harvest
—
Weight
250g
Bag price
GBP 14.00
Price / oz
US$2.11/oz
Brew
espresso, filter, immersion

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.

$2.11/oz

typically $1.63 to $2.61

Where it sits

20 washed single-origin lots (other named varieties, retail bags); GBP listings; dark roast in stock

typical band this lot

Broad comparison: 10th percentile of 20 washed single-origin lots (other named varieties, retail bags); GBP listings; dark roast in stock right now.

This group broadens origin, roast or selling market to find enough lots. It does not qualify this coffee for a value recommendation.

What moves this price

cheaper×1.00pricier
  • Washed process×0.95
  • Dark roast×0.97
  • Other listed varieties×0.97
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

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 80.0 shrunk to 53.8 + bonuses = 50.

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

  • Roaster transparency
    Producer / farm / lot disclosure depth
    80/ 100% weight

Bonuses applied

  • Stale-stock demotion
    This lot has been listed in stock for an extended time; specialty coffee freshness degrades over weeks
    +-4

Sensory profileestimated

Acidity
2
Body
4
Sweetness
4
Balance
3
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 North Star Coffee Roasters

On YouTube

Meet the roaster on camera

2 videos

From the roasterBrand film

North Star - Our Story so far

North Star Coffee Roasters · 2K views on YouTube

Watch on YouTube

This video covers North Star Coffee Roasters; it is general roaster coverage.

Cherrybook summary of the video

This video documents the founding and growth of North Star Coffee Roasters, highlighting their commitment to ethical sourcing and quality. It details the founders' journey from meeting at university to establishing their own roastery, emphasizing their focus on building sustainable relationships with coffee producers.

Inside this video

From North Star Coffee Roasters:

“We've managed to do that whilst really sort of retaining our core values.”
“It was like seeing our dreams kind of come true.”

Explore the videos

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

North Star Coffee Roasters

US$2.11/oz· GBP 14.00 a bag

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