INTRODUCTIONOur love affair with ice cream is centuries old.The ancient Greeks, Romans, and Jews were known tochill wines and juices. This practice evolved into fruitices and, eventually, frozen milk and cream mixtures.The Italians were especially fond of the frozenconfection that by the sixteenth century was beingcalled ice cream. Ice cream is a frozen blend of asweetened cream mixture and air, with addedflavorings. The first public sale of ice cream occurred inParis at the Café Procope in 1670.
INGRIDIENTS• There are three categories of ingredients inthe ice cream mix: dairy, sweeteners, andadditives.• Milk, cream, and non-fat milk solids make up thedairy portion of ice cream.• Sucrose or Splenda® is used to sweeten the mix.• And stabilizers and emulsifiers are added to givethe ice cream the desired body and mouth feel.
ICE CREAM PRODUCION• Although ice cream is available in a variety of forms, such aschocolate-dipped bars and sandwiches ,following general procedureis required for making ice cream General Ice Cream ProcessingSteps• Blend Ingredients(the mixture)• Pasteurize Mix(to kill bacteria)• Homogenize(to produce a uniform a texture)• Age Mix(Cooling and resting to blend flavors )• Add Liquid Flavors and Colors• Freeze(to soft-serve consistency )• Add Fruits, Nuts, and Bulky Flavorings• Package (Packaging and bundling the finished product )• Harden
Refrigeration Cycle An optimized ammonia refrigerationcycle design is displayed in the followingfigure. The three temperatures utilized for thisprocess are -45.6°C, -40.0°C, and -34.7 °C forthe hardener system , the continuous freezersystem, and the cold storageroom, respectively.
Ice Cream Mix PlantWe manufacture complete ice cream mixplant from 200 LPD to 10000 LPD in compactSS skid. We have used PHEs to heat the mixand two stage PHEs for chilling the mix.
Compact Refrigeration System• A compact refrigeration system with PHEevaporator and condenser for the ice creamindustry
Ice Cream Making MachineriesPasteuriserAgeing VatBatch Freezer Fruit FeederHomogenizerCandy Plant Hardening Tunnel
Quality ControlEvery mixture is randomly testedduring the production process. Butterfat andsolid levels are tested. The bacteria levels aremeasured. Each mixture is also taste-tested.Ice cream producers also carefully monitor theingredients that they purchase from outsidesuppliers.
The FutureIce cream manufacturers continue todevelop new flavorings. Ironically, given theindustrys experiences during Prohibition, oneof the more recent innovations has been theintroduction of liqueur-flavored ice creams.