|  | A |
SECTION A — HUMAN NECESSITIES

FOODSTUFFS; TOBACCO

|  | A23 |
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

|  | A23 |
1. Note(s) Attention is drawn to the following places:
   Fulltext... Hierarchy... Expanded...C08B | Polysaccharides, derivatives thereof |
   Fulltext... Hierarchy... Expanded...C11 | Animal or vegetable oils, fats, fatty substances or waxes |
   Fulltext... Hierarchy... Expanded...C12 | Biochemistry, beer, spirits, wine, vinegar |
   Fulltext... Hierarchy... Expanded...C13 | Sugar industry. [4] |
Processes using enzymes or micro-organisms in order to: liberate, separate or purify a pre-existing compound or composition, or to treat textiles or clean solid surfaces of materials are further classified in subclass Fulltext... Hierarchy... Expanded...C12S. [5]

|  | A23F |
COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF (coffee or tea pots Fulltext... Hierarchy... Expanded...A47G 19/14; tea infusers Fulltext... Hierarchy... Expanded...A47G 19/16; apparatus for making beverages, e.g. coffee or tea, Fulltext... Hierarchy... Expanded...A47J 31/00; coffee mills Fulltext... Hierarchy... Expanded...A47J 42/00)

|  | A23F 3/00 |
Tea; Tea substitutes; Preparations thereof

|  | A23F 3/06 |
· | Treating tea before extraction (reducing or removing alkaloid content Fulltext... Hierarchy... Expanded...A23F 3/36); Preparations produced thereby (tea extract preparations Fulltext... Hierarchy... Expanded...A23F 3/16) [3]

|  | A23F 3/08 |
· · | Oxidation; Fermentation [3]

|  | A23F 3/10 |
· · · | Fermentation with addition of micro-organisms or enzymes [3]

|  | A23F 3/12 |
· · | Rolling or shredding tea leaves [3]

|  | A23F 3/14 |
· · | Tea preparations, e.g. using additives (flavouring Fulltext... Hierarchy... Expanded...A23F 3/40) [3]

|  | A23F 3/16 |
· | Tea extraction; Tea extracts; Treating tea extract; Making instant tea [3]

|  | A23F 3/18 |
· · | Extraction of water soluble tea constituents (isolation of tea flavour or tea oil Fulltext... Hierarchy... Expanded...A23F 3/42) [3]

|  | A23F 3/20 |
· · | Removing unwanted substances (reducing or removing alkaloid content Fulltext... Hierarchy... Expanded...A23F 3/38) [3]

|  | A23F 3/22 |
· · | Drying or concentrating tea extract [3]

|  | A23F 3/24 |
· · · | by freezing out the water [3]

|  | A23F 3/26 |
· · · | by lyophilisation [3]

|  | A23F 3/28 |
· · · | by spraying into a gas stream [3]

|  | A23F 3/30 |
· · | Further treatment of dried tea extract; Preparations produced thereby, e.g. instant tea (flavouring Fulltext... Hierarchy... Expanded...A23F 3/40) [3]

|  | A23F 3/32 |
· · · | Agglomerating, flaking or tabletting [3]

|  | A23F 3/34 |
· | Tea substitutes, e.g. mate; Extracts or infusions thereof [3]

|  | A23F 3/36 |
· | Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof [3]

|  | A23F 3/38 |
· · | Reducing or removing alkaloid content from tea extract [3]

|  | A23F 3/40 |
· | Tea flavour; Tea oil; Flavouring of tea or tea extract (synthetic tea flavours Fulltext... Hierarchy... Expanded...A23L 1/226) [3]

|  | A23F 3/42 |
· · | Isolation of tea flavour or tea oil [3]

|  | A23F 5/00 |
Coffee; Coffee substitutes; Preparations thereof [3]

|  | A23F 5/02 |
· | Treating green coffee; Preparations produced thereby (roasting Fulltext... Hierarchy... Expanded...A23F 5/04; removing unwanted substances Fulltext... Hierarchy... Expanded...A23F 5/16; reducing or removing alkaloid content Fulltext... Hierarchy... Expanded...A23F 5/20; extraction Fulltext... Hierarchy... Expanded...A23F 5/24) [3]

|  | A23F 5/04 |
· | Methods of roasting coffee (machines therefor Fulltext... Hierarchy... Expanded...A23N 12/00) [3]

|  | A23F 5/06 |
· · | of roasting extracted coffee [3]

|  | A23F 5/08 |
· | Methods of grinding coffee (coffee mills Fulltext... Hierarchy... Expanded...A47J 42/00) [3]

|  | A23F 5/10 |
· | Treating roasted coffee; Preparations produced thereby (removing unwanted substances Fulltext... Hierarchy... Expanded...A23F 5/16; reducing or removing alkaloid content Fulltext... Hierarchy... Expanded...A23F 5/20; coffee extraction, making instant coffee Fulltext... Hierarchy... Expanded...A23F 5/24) [3]

|  | A23F 5/12 |
· · | Agglomerating, flaking or tabletting (of coffee extract or instant coffee Fulltext... Hierarchy... Expanded...A23F 5/38) [3]

|  | A23F 5/14 |
· · | using additives, e.g. milk, sugar; Coating, e.g. for preserving (flavouring Fulltext... Hierarchy... Expanded...A23F 5/46) [3]

|  | A23F 5/16 |
· | Removing unwanted substances (reducing or removing alkaloid content Fulltext... Hierarchy... Expanded...A23F 5/20) [3]

|  | A23F 5/18 |
· · | from coffee extract [3]

|  | A23F 5/20 |
· | Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof [3]

|  | A23F 5/22 |
· · | Reducing or removing alkaloid content from coffee extract [3]

|  | A23F 5/24 |
· | Extraction of coffee; Coffee extracts (with reduced alkaloid content Fulltext... Hierarchy... Expanded...A23F 5/20); Making instant coffee (methods of roasting extracted coffee Fulltext... Hierarchy... Expanded...A23F 5/06) [3]

|  | A23F 5/26 |
· · | Extraction of water soluble constituents (isolation of coffee flavour or coffee oil Fulltext... Hierarchy... Expanded...A23F 5/48) [3]

|  | A23F 5/28 |
· · | Drying or concentrating coffee extract [3]

|  | A23F 5/30 |
· · · | by freezing out the water [3]

|  | A23F 5/32 |
· · · | by lyophilisation [3]

|  | A23F 5/34 |
· · · | by spraying into a gas stream [3]

|  | A23F 5/36 |
· · | Further treatment of dried coffee extract; Preparations produced thereby, e.g. instant coffee (removing unwanted substances Fulltext... Hierarchy... Expanded...A23F 5/18; flavouring Fulltext... Hierarchy... Expanded...A23F 5/46) [3]

|  | A23F 5/38 |
· · · | Agglomerating, flaking or tabletting [3]

|  | A23F 5/40 |
· · · | using organic additives, e.g. milk, sugar [3]

|  | A23F 5/42 |
· · · | using inorganic additives [3]

|  | A23F 5/44 |
· | Coffee substitutes [3]

|  | A23F 5/46 |
· | Coffee flavour; Coffee oil; Flavouring of coffee or coffee extract (synthetic coffee flavours Fulltext... Hierarchy... Expanded...A23L 1/234) [3]

|  | A23F 5/48 |
· · | Isolation of coffee flavour or coffee oil [3]

|  | A23F 5/50 |
· · · | from coffee extract [3]