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Fermentation Atlas

Eggs

Eggs preserved by fermentation or by alkaline curing.

3 entries listed here.

Compare them

FermentRegionMain stepTemperatureSaltpH
Century egg (boundary: alkaline, chemical)China28–42 days10
Khai-khem (boundary: salt-cured, not fermented)Thailand30 days26 %
ZaodanChina24 h

Bold names have a full page with the animated steps. Blank cells: no sourced value yet.

Short entries

What the sources record about each of these so far.

ZaodanChina

Also called 糟蛋, wine-lees preserved egg, Pinghu zaodan, Xufu zaodan.

soft-shelled egg with wine aroma, eaten without cooking

  1. Select and wash eggs; gently crack the shell without breaking the membrane24 h
  2. Layer eggs in jars with salted wine lees; sealabout 5 months in total (traditional), through clearing (化清), setting (凝固) and ripening (成熟)

Numbers come from cited sources and carry a label that says how each is known. How this atlas is made