A
SECTION A — HUMAN NECESSITIES
  
FOODSTUFFS AND TOBACCO
 A23
FOODS OR FOODSTUFFS; THEIR TREATMENT NOT INCLUDED IN OTHER CLASSES
 A23B
PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; THE PRESERVED OR CANNED PRODUCTS (preserving foodstuffs in general A23L 3/00; preserving materials other than foodstuffs A61L; applying food preservatives in packages B65D 81/28)
 A23B 1/00 - 
A23B 3/00
( transferred to A23B 4/00-A23B 4/14 )
 A23B 4/00
General methods for preserving meat, sausages, fish or fish products  [2]
 A23B 4/02
·  Preserving by means of inorganic salts  [2]
 A23B 4/04
·  Drying or smoking; Smoking devices (drying apparatus in general F26B)  [2]
 A23B 4/06
·  Freezing; Subsequent thawing; Cooling  [2]
 A23B 4/08
·  ·  with addition of chemicals before or during cooling  [2]
 A23B 4/10
·  Coating with a protective layer  [2]
 A23B 4/12
·  Preserving with acids; Acid fermentation  [2]
 A23B 4/14
·  Preserving with chemicals other than inorganic salts or acids  [2]
 A23B 5/00
Preservation of eggs or egg products (preserving dough or bakery products A21D)
 A23B 5/02
·  Drying
 A23B 5/04
·  Freezing; Subsequent thawing; Cooling
 A23B 5/06
·  Coating eggs with a protective layer
 A23B 7/00
Preservation of vegetables or fruit
 A23B 7/02
·  Dehydrating; Subsequent reconstitution
 A23B 7/03
·  ·  Drying raw potatoes (dried cooked potatoes A23L 1/216)
 A23B 7/04
·  Freezing; Subsequent thawing; Cooling
 A23B 7/06
·  Blanching fruit and vegetables preparatory to preservation
 A23B 7/08
·  Preserving fruit with sugar (marmalade, jam, fruit jellies A23L 1/06)
 A23B 7/10
·  Preserving fruit or vegetables with acid; Acid fermentation
 A23B 7/12
·  ·  Apparatus for compressing sauerkraut
 A23B 7/14
·  Preserving fruit or vegetables with chemicals otherwise than with sugar or acid
 A23B 7/16
·  Coating fruit or vegetables with a protective layer (A23B 7/08 takes precedence)
 A23B 9/00
Preservation of edible seeds, e.g. cereals