Methodik

Working principles

The encyclopedia operates on several editorial principles that shape every decision:

Structured reference over discursive blog. Each entry follows a strict schema (18-21 fields depending on dimension). Profile pages render the same sections in the same order across entries within a dimension. This produces a reference that is internally navigable and that grows coherently — not a collection of essays that grew organically without structure.

Cross-linking over isolation. Every entry connects to entries in other dimensions where relevant. A pairing profile (e.g., kimchi-and-steamed-rice) links to its member ferments (napa-kimchi, radish-kimchi-kkakdugi, water-kimchi-mul-kimchi), to its origin (korea-jeolla-kimchi), to its cultures (lactobacillus species), to its category (lacto-fermented-vegetables), and to its guides (salt-percentage, wild-vs-starter). This is what makes the encyclopedia an encyclopedia rather than a directory.

Native scripts preserved. Where a tradition uses non-Latin script, we render it alongside Latin transliteration. The encyclopedia covers 14+ writing systems: Hangul, kanji, hanzi (simplified and traditional), Tamil, Amharic Ge'ez, Georgian, Arabic, Hebrew, Cyrillic, Greek, Devanagari, Khmer, and Latin. Native script display is not decorative — it carries semantic weight and respects the traditions documented.

Multi-language UI at v1. Eight languages have full UI translation: English (default), Korean, Japanese, Chinese (Simplified), Spanish, German, French, Italian. This means navigation, section headings, filter labels, taglines, and meta descriptions all appear in the visitor's language. Long-form editorial bodies stay English at v1 with a translation notice; v2 will introduce editor-translated bodies.

Selection criteria

Ferments (59 entries)

Selected for: documented continuous practice across generations; cross-cultural significance (presence in multiple regions or major influence on one regional cuisine); identifiable microbiological character; representativeness across the encyclopedia's 8 categories. Specific celebrity ferments (kombucha, kimchi, sourdough) are included alongside less-known but structurally important entries (natto, doenjang, garum, kvass, viili Finnish).

Categories (8 entries)

The category framework was developed iteratively to balance completeness against parsimony. Eight categories cover the encyclopedia's ferment universe: lacto-fermented vegetables, dairy ferments, fermented beverages (alcoholic and non-alcoholic — two separate categories), sourdough and grain ferments, soy and legume ferments, fermented condiments, and mold cultures and koji. A ninth potential category (fermented meats and fish) was folded into condiments for v1 since the meat-ferment representation is currently small; v2 may split it out.

Cultures (15 entries)

The major microbial actors that drive global fermentation: the LAB genera (Lactobacillus, Leuconostoc, plus the 2020-recognized derivative genera), the major yeasts (Saccharomyces cerevisiae, Brettanomyces), the foundational molds (Aspergillus oryzae, Rhizopus oligosporus, Penicillium spp), the acetic acid bacteria (Acetobacter), the symbiotic communities (kefir grains, kombucha SCOBYs, sourdough starters), and Bacillus subtilis as the natto driver. The selection is biased toward cultures that are essential to identified ferments in the encyclopedia.

Origins (29 entries)

Geographic and cultural origins that anchor identified fermentation traditions. Selection criteria: continuous practice over generations (typically 100+ years documented), distinct technique that emerged from that geography, contemporary practitioners still active. The 29 origins span: 14 in Asia (Japan ×5, Korea ×3, China ×3, India ×2, Indonesia ×1), 9 in Europe (Italy ×2, Germany, Eastern Europe, Caucasus, Scandinavia, France, Iceland, Vietnam — geographically Asian but cuisine-clustered with European technique), 4 in the Americas (USA ×1, Mexico ×2, one cross-cultural), 2 in Africa (Ethiopia, West Africa).

Pairings (22 entries)

Canonical combinations where the encyclopedia's ferments meet specific non-fermented accompaniments and other ferments. Selection criteria: structural importance to a cuisine's daily-meal or celebration architecture (kimchi-and-rice anchors Korean meals; miso soup anchors Japanese ichiju-sansai); apex finishing pairings (balsamico-and-Parmigiano); cross-tradition combinations (gravlax-and-rye-bread). The 22 distribute as Asia ×14, Europe ×5, Africa ×2, Americas ×1. The Americas representation is notably small (only sourdough-and-cultured-butter from the San Francisco tradition); future versions may expand it.

Guides (7 entries)

The canonical guide pool was locked in M2 (the second editorial milestone) and has been referenced from every other entry across the encyclopedia. Five beginner-level guides (Sandor Katz acknowledgment, equipment, timing-temperature, food-safety, salt-percentage) plus two intermediate-level (microbiology, wild-vs-starter). The pool is intentionally small — guides are foundational reference, not a growing collection.

Editorial significance tiers

Every entry across the six dimensions carries an editorial significance tier:

Foundational — the entry is structurally important to its dimension. A reader using the encyclopedia to understand the topic broadly should know this entry. Examples: sauerkraut (lacto-vegetables), Lactobacillus plantarum (cultures), Korea-Jeolla-kimchi (origins), kimchi-and-steamed-rice (pairings), fermentation-fundamentals-microbiology (guides).

Established — the entry is well-documented and widely practiced but not strictly necessary for broad understanding. A reader exploring depth or breadth should encounter it. Examples: hatcho-miso-long-aged (ferments), milk-kefir-and-walnut-honey (pairings).

Niche — the entry documents a specialized, regional, or historical tradition. Inclusion documents the tradition's continued existence rather than indicating broad importance. Examples: bread-kvass (ferments), some single-region origin entries.

The significance tier informs both display (foundational entries get color-coded prominence in directories) and editorial weight (foundational entries get the longest profile_text, the most cross-references, and the most thorough common_mistakes coverage).

Cross-reference validation

Every cross-reference between entries is validated programmatically during the build: - Pairing → member ferments: every slug verified against ferments.json - Origin → ferments: every slug verified against ferments.json - Culture → ferments: every slug verified against ferments.json - Guide → ferments/cultures/categories/origins/pairings: all slugs verified against their respective dimension data

Broken cross-references are caught at build time and corrected before deployment. The "italy-vinegar-tradition" error on the preserved-lemons pairing (caught during M19b validation, where the Moroccan pairing was incorrectly linked to an Italian origin) is the kind of error this validation catches; in that case the fix was removing the spurious cross-reference rather than adding one.

Sources

The encyclopedia draws on: - Academic literature (food microbiology journals, ethnographic studies, agricultural history) - Published cookbooks and reference works (Sandor Katz, Harold McGee, Nancy Singleton Hachisu, regional cuisine authorities) - Contemporary practitioner interviews and workshops where accessible - Public food-science writing - Government and DOP/PDO/IGP regulatory documentation where applicable

Specific sources are cited within entries where directly quoted or where the encyclopedia's framing depends on a particular source's perspective. The encyclopedia does not maintain a separate bibliography page; reference notes appear inline.

Quality assurance

Each entry passes through three review stages:

1. Data validation — structured fields validated against schema; cross-references validated against other dimensions 2. Editorial review — long-form bodies reviewed for accuracy, completeness, fair representation of traditions, and absence of overconfident claims 3. Translation review — UI translations reviewed by competent speakers where possible; v1 acknowledges that some translations may benefit from professional native-speaker review in v2

Corrections and contributions

Errors and corrections: [email protected]. We respond to legitimate corrections within 30 days and incorporate validated fixes in the next published version.

Proposed additions (new ferments, origins, pairings, or guides): [email protected] with rationale for inclusion (continuous practice, cross-cultural significance, etc.). We evaluate against the encyclopedia's selection criteria and incorporate where editorially appropriate.

Version history

v1.0 — initial release, May 2026. All six dimensions complete with English long-form editorial and 8-language UI translation. v1.x — incremental corrections and additions (data only, no major structural changes). v2.0 — anticipated future release with editor-translated long-form content in non-English languages.