The fermentation craft, documented.
A reference for the world's living fermentation traditions — Korean jang, Japanese miso and koji, Sichuan doubanjiang, San Francisco sourdough, Caucasian kefir, Ethiopian injera, Italian balsamic, and dozens more. Documented as living practice rather than museum-piece history.
Six dimensions
The encyclopedia documents fermentation across six dimensions — ferments themselves, the categories they fall into, the microbial cultures that produce them, the geographic origins that anchor traditions, the canonical pairings that complete dishes, and the foundational guides that underwrite all of it. Each dimension is internally complete and cross-linked to the others.
Ferments
59 fermented foods documented across 8 categories, with full microbiological context, technique guidance, and traditional-use documentation.
Categories
8 categories organizing the encyclopedia's ferment universe — lacto-vegetables, dairy, beverages alcoholic and non-, sourdough, soy/legume, condiments, koji.
Cultures
15 microbial cultures driving the world's fermentations — Lactobacillus, Aspergillus oryzae koji, kefir grains, kombucha SCOBYs, sourdough communities, and more.
Origins
29 geographic and cultural origins where fermentation traditions emerged and persist — from Pixian county to the Caucasus, from San Francisco to Aztec Mexico.
Pairings
22 canonical combinations that anchor world cuisines — the encyclopedia's ferments meeting specific accompaniments to complete daily-meal and celebration dishes.
Guides
7 canonical guides — the microbiology underneath, the equipment, the salt percentages and pH thresholds, the wild-vs-starter spectrum, and the acknowledgment of Sandor Katz.
Foundational ferments
Eight ferments across the categories — the practical entry points into fermentation practice. Sauerkraut and napa kimchi for vegetables; Bulgarian yogurt for dairy; sourdough starter for grains; white miso and tempeh for soy; kombucha for beverages; gochujang for condiments. Together they cover most of the encyclopedia's structural territory.
Sauerkraut
The foundational European lacto-fermented cabbage — salt, time, and nothing else
Kimchi (napa cabbage)
The canonical Korean lacto-fermentation — napa cabbage, gochugaru, jeotgal, time
Bulgarian yogurt
The thermophilic dairy ferment named for its bacterial discoverer — Bulgarian heritage
Sourdough starter
Wild-leavened flour-and-water culture — the foundation organism for traditional bread, kept alive indefinitely with daily feeding
White miso (Saikyo)
Sweet, pale Kyoto-style miso with high koji ratio and short fermentation — delicate and almost dessert-sweet
Kombucha (basic)
Sweetened tea fermented by a symbiotic colony of acetic and yeast organisms (SCOBY)
Tempeh
Indonesian Rhizopus-fermented soybean cake — a solid, sliceable protein with mushroomy aroma and notable nutritional density
Gochujang
Korean fermented red chili paste — gochugaru, glutinous rice, fermented meju powder, malt syrup, salt, time
Foundational pairings
Six canonical combinations that anchor whole cuisines — Korean kimchi-and-rice as the daily-meal architecture, Bavarian sauerkraut-and-pork-knuckle as the celebration plate, Japanese miso soup as the ichiju-sansai foundation, Ethiopian injera-and-doro-wat as the festival meal, San Francisco sourdough-and-cultured-butter as the regional anchor, and Italian aged-balsamic-and-Parmigiano as the apex finishing pairing.
Kimchi with steamed rice
The most fundamental Korean pairing — steamed short-grain rice with kimchi (napa-cabbage, radish-kkakdugi, water mul-kimchi, or others in seasonal rotation); the daily-meal architecture every Korean meal builds around, present from infant weaning through every life stage.
Schweinshaxe with Bavarian sauerkraut
The canonical Bavarian beer-hall dish — Schweinshaxe (whole roasted pork knuckle with the famous crackling-crisp skin) served with caraway-seeded Bavarian sauerkraut, boiled potato dumplings (Kartoffelknödel), and dunkel beer; the substantial winter-and-Oktoberfest meal where the long-fermented kraut cuts the pork's richness across the entire plate.
Miso soup with tofu and wakame
The foundational Japanese soup — white miso (saikyo) or red miso (sendai) whisked into kombu-katsuobushi dashi, with cubed silken tofu and rehydrated wakame seaweed; the daily-meal architecture of Japanese breakfast and structurally embedded in the ichiju-sansai (one-soup-three-side) meal pattern.
Injera with doro wat
Ethiopia's canonical celebration meal — injera (the sour-tangy fermented teff flatbread) serves as plate, utensil, and bread for doro wat (chicken-and-egg stew with berbere spice mix and niter kibbeh spiced clarified butter); the slow-aged ferment meets the spice-and-fat-anchored stew in single-platter communal eating.
Sourdough bread with cultured butter
The canonical bread-and-butter pairing at its high-craft tier — wild-yeast-and-Lactobacillus-fermented sourdough bread (especially Bay Area lineage with L. sanfranciscensis tang) meeting bacterial-cultured-cream butter (Lactococcus lactis cremoris-fermented cream churned to butter); two long-fermentation craft products meeting in the most fundamental of meal moments.
Traditional balsamic with aged Parmigiano-Reggiano
DOP-Tradizionale balsamic at the apex of aging (12-25+ years through the batteria) meeting Parmigiano-Reggiano at the apex of its own (24-36 months minimum); the canonical Emilia-Romagna finishing pairing where both products are consumed in tiny quantities and at maximum maturity.
Start here
Four guides for new fermenters. Equipment and vessels covers what you actually need (less than you'd think). Salt percentage and brining basics is the single most important technical detail. Food safety and troubleshooting separates normal phenomena (kahm yeast, color shifts) from dangerous outcomes. The acknowledgment of Sandor Katz sets the philosophical foundation.