A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
A23B2/00—Preservation of foods or foodstuffs, in general
A23B2/40—Preservation of foods or foodstuffs, in general by heating loose unpacked materials
A23B2/42—Preservation of foods or foodstuffs, in general by heating loose unpacked materials while they are progressively transported through the apparatus
A23B2/46—Preservation of foods or foodstuffs, in general by heating loose unpacked materials while they are progressively transported through the apparatus with transport through tubes
Perfectionnements apportes aux installations destinees au traitement thermique, a haute temperature, en vue de leur assurer une longue conservation, de liquides alimentaires tels que le lait