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Cherrybook.
43 Factory Coffee Roaster

Ratnagiri SLN9 Naturals

XLIII.X.EXCELLENT

NaturalLight

Cherrybook Index

54sparse

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

Price position

US$4.38/ozVND 1000000.00 for 250g

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

Catalog summary

A natural lot from Chikmagalur, India, not yet indexed (1 of 7 signals on file).

Based on the listing and catalog evidence

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Price and availability set by the roaster.

Roaster’s notes

cacao nibs · banana gelato · cinnamon

  • Fruit
  • Cocoa and nut
  • 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.

Ratnagiri SLN9 Naturals by 43 Factory Coffee Roaster
Farm / Co-op
Ratnagiri Estate
Process
Natural
Altitude
1340 m
Varietals
Other
Harvest
2026
Weight
250g
Bag price
VND 1000000.00
Price / oz
US$4.38/oz
Brew
espresso, filter

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

54

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 85.0 shrunk to 54.4 = 54.

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

  • Roaster transparency
    Producer / farm / lot disclosure depth
    85/ 100% 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 43 Factory Coffee Roaster

On YouTube

6 videos · 16k combined views

6 videos cover 43 Factory Coffee Roaster from reviewer XLIII Coffee - Specialty Coffee.

Coverage from others

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43 Factory Coffee Roaster

US$4.38/oz· VND 1000000.00 a bag

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