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Dairy. Can you name some dairy products?. Nutrients in milk. Milk is a good source of protein, vitamin A, Vitamin B12 Riboflavin Calcium Vitamin D (fortified milk). magnesium. What is pasteurization? And homogenization?. Milk that is heat treated to kill enzymes. Pasteurization
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Dairy Can you name some dairy products?
Nutrients in milk • Milk is a good source of • protein, • vitamin A, • Vitamin B12 • Riboflavin • Calcium • Vitamin D (fortified milk). • magnesium
What is pasteurization? And homogenization? • Milk that is heat treated to kill enzymes. Pasteurization • Homogenized: the process that breaks down fat and distribute in milk evenly and permanently. • Raw milk: milk that isn’t pasteurized. Raw Milk
Kinds of milk • Whole milk highest % of fat 3.2 or more. • Reduced fat 2% • Low fat ether 2% or 1%. • Non fat milk less than ½ % • Kefir: fermented milk with slightly tangy flavor Similar to yogurt, made from camel’s milk. • Acidophilus: bacteria added to help aid in digestion. Flavor is similar to regular milk. • Calcium enriched : 500mg of Ca in one cup.
cream • Fatty part of whole milk. • Federal standards for each of the following creams. • Half and half:10.5-18% fat • Coffee cream/Table cream:18-30% • Light whipping cream 30-36% • Heavy whipping cream over 36% fat. • Sour cream over 18% milk fat.
Butter • Graded for quality by USDA • Federal law requires butter to be 80% milk fat. • Grade AA is superior quality. Spreads well, delicate sweet flavor. • Grade A is good quality , pleasing flavor with smooth texture. • Grade B made from cream that has gone sour, also has pleasing flavor. • Whipped butter is generally unsalted and in tubs, is soft and spreadable. It isn’t recommended for baking, because added air from whipping changes the density.
yogurt • Made by adding special harmless bacteria. • It helps keep digestive system healthy. • Yogurt has more nutrients than similar amount of milk. • 1cup nonfat yogurt=452 mgs calcium • Regular milk=300mgs Calcium
cheese • Cheese is concentrated form of milk. • When an enzyme rennin is added to milk, the milk thickens and separates into solid clusters called the curds and a thin bluish liquid the whey. • Most cheese originated in European countries.
Fresh cheese and Ripened cheese. • Cheese can be divided into 2 categories. • Fresh or not aged • Ripened or aged.
Fresh cheese • It is highly perish able, must be refrigerated and used in few days. • Examples: • Cream cheese , • Cottage cheese • Ricotta cheese and • Farmers cheese.
Ripened cheese. • Also called aged, is made by adding ripening agents such as bacteria, mold, yeast or combination of these to the curds. • Flavors vary from from mild to very sharp or strong. • Textures range from firm to soft. • Examples refer to page 507 table 32.1. • Cheddar, mozzarella, brie, blue cheese.
Cooking with cheese. • Cheese is high in protein and fat so you have to cook with care. • High temperatures or cooking for too long; makes cheese tough and rubbery. • When other foods are combined with cheese they should either be precooked or need only short cooking time. • Eg macaroni and cheese recipe. Macaroni was precooked. • processed cheese blend easily that’s is why we used cheddar in the recipe. • Mini cheese cake tarts. • Fat in the cheese attracts microwaves, so the cheese may be hotter than rest of the food in the dish.
Cooking with milk and cream • Scorching: when you heat milk solids settle to the sides and fall to the bottom of the pan, sugar lactose caramelizes and burns or scorches. • Curdling: high cooking temp causes curdling That is curds and whey separate out. • Tempering : in this technique bring one food to the right temperature before mixing it completely with another. • Scalding: milk that is heated just below boiling point.
Buying dairy products. • Consider fat amounts, container size and product type. • Rich foods generally cost more than low-fat varieties. • Large containers are a better buy than small ones. • Foods with added flavorings, fruit and sugar cost more than their plain counterparts. • Look for “sell by” date.
Storing dairy products • Dairy foods are highly perishable . • Refrigerate immediately • Make sure containers are tightly closed . As they can pick up odors. • If milk is left for more than 2 hrs discard it. • If it has been at room temp for less than 2 hrs refrigerate in separate containers.
Store milk away from light as light destroys riboflavin. • Ripened cheese should be wrapped so it doesn’t dry out. • Firm and semisoft cheeses can be frozen into ½ lb portions. • You can refrigerate butter for several weeks and freeze it for Up to nine months.
Good mold • Molds are carefully selected and added to particular cheeses, including blue cheese. • This gives them their characteristic appearance and flavor. • Because the process is carefully controlled, these cheeses are safe to eat.
Bad mold • All cheeses may become moldy if stored improperly or for too long. • This mold is not safe to eat.