Roaster
Carta Coffee
- Coffees in catalog
- 9
- Also available
- 1
- Avg Cherry's Index (limited data)
- 58.9
- Reddit sentiment
- 75/100
How Cherry’s Index is calculatedavg coverage 23% · limited data
Coverage is below 50%. Most of this roaster’s lots are scored off roaster-level signals (Reddit + YouTube) without per-lot SCA grades, Coffee Review entries, or published buyer reviews. With limited signal, scores are also pulled toward a neutral 50 baseline by the Cherry’s Index methodology, so lots can read flatter than the actual cup quality differences between them. The avg Cherry’s Index reflects general reputation more than per-lot quality.
Roaster signals
Apply to every lot from this roaster.
- Reddit75/100weight 18%
- YouTube—weight 10%
Per-lot signals (averaged)
Vary across lots; averaged over 9 in-stock lots.
- SCA gradenot on file · weight 25%
- Coffee Reviewnot on file · weight 20%
- Buyer reviewsnot on file · weight 12%
- Cherrybook reader ratingsnot on file · weight 5%
- Transparency57.2/1009/9 lots · weight 5%
Bonuses earned (per lot)
- stale decay9/9
Base components are renormalized over whatever signals are available for each lot. SCA + Coffee Review are capped at 40% combined to keep the cupping story from dominating. Bonuses (accolades, awards, editorial coverage) and freshness decay are applied on top.
Community reputation · Reddit
Well-regarded· sentiment 75/100
There is no mention of "Carta Coffee" in the provided Reddit threads. The threads discuss other roasters such as B&W, Onyx, Atomic, and SEY, but do not contain any commentary or reputation data regarding Carta Coffee.
Threads cited (7)
Flagship cafe
Retail location
Captain Cook, HI
Open in maps →Seed-city fallback applied (Captain Cook, HI); the website didn't expose a specific flagship address. LLM-finder notes: The website mentions a farm in the Kealakekua district of Kona, but does not provide a physical address for a retail store or cafe.
The catalog
9 in stock · 3 archived
Peaberry
Natural lot with Citrus Blossoms, Roasted Almonds, and Caramel in the cup.
Kona, US · Natural
Roosters Cove
Bright Fruity Notes, Buttery Caramel Notes, and Smooth Balance on a experimental build.
Kona, US · Experimental
Captain's Roast
Smooth Sweetness, Clean Citrus Highlights, and Smoky on a natural build.
Kona, US · Natural
Latitude Natural Process
Expect Blueberry, Brown Sugar, and Honey from this natural.
Kona, US · Natural
Also available · subscriptions, sample packs, gear
Captain's and Meridian Roast Bundle
Roaster flags Citrus Flower, Fruit, and Hazelnut in the cup.
Archived (3)
Father's Day Special (Latitude Natural & Captain's Roast)
Kona, US; taste data is still thin.
Kona, US
For roasters
Cherrybook runs a monthly Roaster Spotlight Series featuring one roaster with an editorial piece and a giveaway. Interested in being featured? See the format or email josh@cherrybookcoffee.com.













