A | HUMAN NECESSITIES |
23 | FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES |
L | FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT |
5 | Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor |
40 | Colouring or decolouring of foods |
41 | Retaining or modifying natural colour by use of additives, e.g. optical brighteners |