A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
A23G1/10—Mixing apparatus; Roller mills for preparing chocolate
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
B01F27/725—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in respective separate casings, e.g. one casing inside the other