|  | C |
SECTION C — CHEMISTRY AND METALLURGY

|  | C |
Note(s) Definitions for Section C: Alkali metals: Li, Na, K, Rb, Cs, Fr Alkaline earth metals: Ca, Sr, Ba, Ra Lanthanides: elements with atomic numbers 57 to 71 inclusive Rare earths: Sc, Y, Lanthanides Actinides: elements with atomic numbers 89 to 103 inclusive Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W Halogens: F, Cl, Br, I, At Noble gases: He, Ne, Ar, Kr, Xe, Rn Platinum group: Os, Ir, Pt, Ru, Rh, Pd Noble metals: Ag, Au, Platinum group Light metals: alkali metals, alkaline earth metals, Be, Al, Mg Heavy metals: metals other than light metals Iron group: Fe, Co, Ni Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens Metals: elements other than non-metals Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

CHEMISTRY

|  | C12 |
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING

|  | C12 |
Note(s) In the field of sub-classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C12M-C12Q, in the absence of an indication to the contrary, an invention is classified in the last appropriate place. [3] Within this class, viruses, undifferentiated plant or animal cells, protozoa and unicellular algae are considered as micro-organisms. Also, sub-cellular parts, unless specifically provided for, are classified with the whole cell. [3] Within this class, non-obligatory classifications may be given as additional information relating to the micro-organisms used by means of the symbols of sub-class Fulltext... Hierarchy... Expanded...C12R. [3]

|  | C12C |
BREWING OF BEER (cleaning of raw materials Fulltext... Hierarchy... Expanded...A23N; pitching and depitching machines, cellar tools Fulltext... Hierarchy... Expanded...C12L; propagating yeasts Fulltext... Hierarchy... Expanded...C12N 1/14; non-beverage ethanolic fermentation Fulltext... Hierarchy... Expanded...C12P 7/06)

|  | C12C 1/00 |
Preparation of malt

|  | C12C 1/02 |
· | Pretreatment of grains, e.g. washing, steeping

|  | C12C 1/04 |
· | Germinating; Drying

|  | C12C 1/06 |
· · | on single or multi-stage floors

|  | C12C 1/08 |
· · | in boxes or drums

|  | C12C 1/10 |
· · | Drying on fixed supports

|  | C12C 1/12 |
· · | Drying on moving supports

|  | C12C 1/14 |
· | Grain or malt turning apparatus

|  | C12C 1/16 |
· | After-treatment of malt, e.g. malt cleaning, detachment of the germ

|  | C12C 1/18 |
· | Preparation of malt extract or of special kinds of malt, e.g. caramel, black malt

|  | C12C 3/00 |
Treatment of hops (hop extraction Fulltext... Hierarchy... Expanded...C12C 9/02)

|  | C12C 3/02 |
· | Drying

|  | C12C 3/04 |
· | Conserving; Storing; Packing

|  | C12C 5/00 |
Other raw materials for the preparation of beer

|  | C12C 5/02 |
· | Additives for beer

|  | C12C 5/04 |
· · | Colouring additives

|  | C12C 7/00 |
Preparation of wort (malt extract Fulltext... Hierarchy... Expanded...C12C 1/18)

|  | C12C 7/02 |
· | Mixing malt with water

|  | C12C 7/04 |
· | Preparation of the mash

|  | C12C 7/06 |
· · | Mashing apparatus

|  | C12C 7/08 |
· · · | with a horizontal stirrer shaft

|  | C12C 7/10 |
· · · | with a vertical stirrer shaft

|  | C12C 7/12 |
· · | Cooling devices for the mash

|  | C12C 7/14 |
· | Clarifying wort (Läuterung)

|  | C12C 7/16 |
· · | by straining

|  | C12C 7/18 |
· | After-treatment of wort, e.g. sterilisation

|  | C12C 9/00 |
Methods specially adapted for the making of beerwort

|  | C12C 9/02 |
· | Beerwort treatment; Boiling with hops; Hop extraction (brewing devices Fulltext... Hierarchy... Expanded...C12C 13/00)

|  | C12C 9/04 |
· | Clarifying beerwort between hop boiling and cooling

|  | C12C 9/06 |
· | Cooling beerwort; Clarifying beerwort during or after the cooling

|  | C12C 9/08 |
· | After-treatment

|  | C12C 11/00 |
Fermentation processes for beer (preparation of wine Fulltext... Hierarchy... Expanded...C12G 1/00)

|  | C12C 11/02 |
· | Pitching yeast

|  | C12C 11/04 |
· | Fermentation of beerwort

|  | C12C 11/06 |
· | Acidifying the wort for ethanolic fermentation

|  | C12C 11/08 - C12C 11/22 |
( transferred to Fulltext... Hierarchy... Expanded...C12N 1/00, Fulltext... Hierarchy... Expanded...C12P 7/06 )

|  | C12C 11/24 - C12C 11/36 |
( transferred to Fulltext... Hierarchy... Expanded...C12N 1/00 )

|  | C12C 11/38 |
( transferred to Fulltext... Hierarchy... Expanded...C12P 7/06 )

|  | C12C 13/00 |
Brewing devices [3]

|  | C12C 13/02 |
· | Brew kettles [3]

|  | C12C 13/04 |
· · | heated with steam [3]

|  | C12C 13/06 |
· · | heated with fire [3]