霜降Frost's Descent
发酵度發酵度
fājiào dù
Term · Processing

oxidation level

Literal meaning

fermentation + degree

Definition#

'Degree of fermentation' — in practice the degree of oxidation reached in zuoqing. Vendors quote it as a percentage (e.g. 30–60 % for yancha), but there is no standard measurement behind those numbers. It is often confused with roast level, which is a separate variable added afterwards.

Translation and usage#

LanguageUseAlternatives & cautions
English oxidation level
degree of enzymatic oxidation
translation
Also acceptable
  • degree of oxidation
Avoid
fermentation level
misnomer
X % oxidized (as precise fact)
vendor percentages are estimates without a standard method
Deutsch Oxidationsgrad
Grad der enzymatischen Oxidation
translation
Also acceptable
  • Oxidationsstufe
Avoid
Fermentationsgrad
misnomer
Русский степень окисления
степень ферментативного окисления
translation
Avoid
степень ферментации
misnomer, though common (moychay)
简体字 发酵度
繁體字 發酵度
Regional usage
  • 發酵程度
日本語 酸化度

Common confusions#

  • Moychay claims 'degree of fermentation is controlled by roasting and final drying', conflating oxidation and roast.
  • Dark liquor from heavy roast is mistaken for high oxidation.

Terms#

Entries that use this term 1#

Sources#