Oxidation; Fermentation

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Tea; Tea substitutes; Preparations thereof > Treating tea before extraction; Preparations produced thereby > Oxidation; Fermentation

CPC:

Tea; Tea substitutes; Preparations thereof (preservation of tea, tea substitutes or herbal tea A23B85/00) > Treating tea before extraction (reducing or removing alkaloid content A23F3/36); Preparations produced thereby (tea extract preparations A23F3/16) > Oxidation; Fermentation

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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A23F 3/10 Fermentation with addition of microorganisms or enzymes since 1980 IPC+CPC Available in IPC and CPC