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Who Makes The
BEST COFFEE
Editorial sacred-geometry artwork for China Lao Xu Zhai Anaerobic; not a documentary photograph

Editorial illustration

Editorial sacred-geometry artwork for China Lao Xu Zhai Anaerobic; not a documentary photograph

Editorial illustration

Editorial sacred-geometry artwork for China Lao Xu Zhai Anaerobic; not a documentary photograph

Editorial illustration

Editorial sacred-geometry artwork for China Lao Xu Zhai Anaerobic; not a documentary photograph

Editorial illustration

China Lao Xu Zhai Anaerobic

Roasted by Onyx Coffee LabRoaster's website
EXPERIMENTAL PROCESS
TagsPu’er PrefectureCatimorAnaerobicLight roastMangoDark ChocolateBlackberryArabicaSingle originSmallholder community of Lao Xu Zhai VillageSmallholder community of Lao Xu Zhai Village and TorchOnyx Coffee LabIndependent
AnaerobicCatimorLight roast
Brand
Onyx Coffee Lab
Roaster website
Visit website
Country
—
Region
Pu’er Prefecture
Town
Lao Xu Zhai Village
Farm / Station
Smallholder community of Lao Xu Zhai Village
Farmer / Producer
Smallholder community of Lao Xu Zhai Village and Torch
Species
Arabica
Type
Single origin
Grade
Not specified
Variety
Catimor
Process
Roast
Light
Tasting notes
Mango, Dark Chocolate, Blackberry, Tamarind
Fermentation
36 hours of limited-oxygen whole-cherry fermentation
Drying
Raised beds and patios; approximately 20 days
Product page
Roaster's site
Date reviewed
—
Why some details are blank
  • country and region relationshipsThe exact source identifies Yunnan, China, but no matching existing China country or Yunnan/Pu’er region record was available; no geography entity was invented.
  • harvest yearThe exact archive publishes March but not the harvest year.
  • individual growersOnyx attributes the lot to the Lao Xu Zhai smallholder community and Torch rather than naming individual farmers.
  • original tasting scoreThe coffee has not been reviewed or scored by this site.
Spotted an error? Report a correction →
The transparency chain

FROM THE BAG
BACK TO THE LAND.

Every link we could verify, traced in one place. Follow the chain as far as it goes — when the industry doesn't disclose a link, we say so instead of guessing.

  1. 01
    The name on the bag
    China Lao Xu Zhai Anaerobic
  2. 02
    The brand
    Onyx Coffee Lab
  3. 03
    The roaster
    Onyx Coffee Lab
  4. 04
    The variety
    Catimor
  5. 05
    The farm
    Smallholder community of Lao Xu Zhai Village
  6. 06
    The farmer
    Smallholder community of Lao Xu Zhai Village and Torch
  7. 07
    The region
    Pu’er Prefecture
  8. 08
    The country
    Not disclosed
From the producer

The coffee is produced by a smallholder community in the Lao Xu Zhai Village of Yunnan's Pu’er Prefecture, working in partnership with Torch to improve post-harvest and processing methods.

From the roaster

Onyx Coffee Lab highlights this lot as a fruit-forward and vibrant single-origin coffee that showcases the evolving specialty coffee landscape in China.

Why this coffee is noteworthy

This coffee represents a decade-long collaborative partnership between a smallholder community in Yunnan and Torch, focusing on shared experimentation in processing and farming techniques.

The honest process breakdown

WHAT DID THEY ACTUALLY
DO TO THIS COFFEE?

01
What was done

Added exact elevation, harvest month, Catimor/process linkage, 36-hour whole-cherry anaerobic fermentation and drying duration; corrected the false unknown-country note; recorded one exact independent tasting source without manufacturing a rating.

What was added?

Nothing, as far as the producer has disclosed.

What wasn't added?

No post-roast flavorings of any kind.

Why it matters

What you might taste

Coffee profile

In the database. Not tasted. Not scored.

This coffee is in our database because we can reliably document it — but we haven't tasted and scored it yet, and we never publish a score we haven't earned.

Outside reviews and internet discussion — is kept clearly separate from our own review. When we taste it, our full review appears here.

The internet pulse

What the internet is saying about this coffee

Research complete — no qualifying reviews yet

Our research pipeline scanned public reviews, videos, forums and discussions for this coffee (last pass 2026-10-26) and found no independent review of this exact release that meets our verification standards. When qualifying sources appear, they'll be published here.

What we found

Non-exact, seller, directory, generic-roaster, different-release, duplicate, and older-release sources were excluded. No qualifying independent exact-release review remains.

Until then, meet the people behind it:

Meet the farm: Smallholder community of Lao Xu Zhai Village →Meet the farmer: Smallholder community of Lao Xu Zhai Village and Torch →
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