Cookbook:Milk

Milk
Milk
Category	Dairy

Milk is a nutritious liquid produced by mammals. The milk of some mammals, particularly cows, goats, sheep, and buffalo, is collected for human consumption. It may be consumed either directly, usually after pasteurization, or processed into dairy products such as cream, butter, yogurt, ice cream, or cheese. In English, the term 'milk' used alone almost always refers to cow's milk.

Storage

When raw animal milk is left standing for a while, it turns sour. This is the result of fermentation: lactic acid bacteria naturally present in raw animal milk turn the animal milk sugar into lactic acid. This fermentation process is exploited in the production of various dairy products.

Pasteurized animal milk does not have these bacteria, so instead of souring it will putrefy if kept unrefrigerated, and should be stored between 1 and 4 °C (34 and 39 °F). The putrefaction of animal milk can be forestalled by using ultra-high temperature (UHT, also known as ultra-pasteurization) treatment; animal milk so treated can be stored unrefrigerated for several months until opened.

Fat content

Milk from different mammals has different fat contents. Fresh milk may be processed to modify the fat content in various ways prior to consumption. In many countries, commercially available cow's milk is classified by fat content.

USA

Skim/no fat milk: 0-0.5% milk fat
Low fat milk: 1% milk fat
Reduced fat milk: 2% milk fat
Whole milk: 4% milk fat

Nutrition facts

Skim/no fat milk

Low fat milk

Reduced fat milk

Whole milk

NUTRITION FACTS
Serving Size:
Servings Per Recipe:
Amount per serving
Calories
Calories from fat
Total Fat
Saturated Fat
Cholesterol
Sodium
Total Carbohydrates
Dietary Fiber
Sugars
Protein
Vitamin A
Vitamin C
Calcium
Iron

NUTRITION FACTS
Serving Size:
Servings Per Recipe:
Amount per serving
Calories
Calories from fat
Total Fat
Saturated Fat
Cholesterol
Sodium
Total Carbohydrates
Dietary Fiber
Sugars
Protein
Vitamin A
Vitamin C
Calcium
Iron

NUTRITION FACTS
Serving Size:
Servings Per Recipe:
Amount per serving
Calories
Calories from fat
Total Fat
Saturated Fat
Cholesterol
Sodium
Total Carbohydrates
Dietary Fiber
Sugars
Protein
Vitamin A
Vitamin C
Calcium
Iron

NUTRITION FACTS
Serving Size:
Servings Per Recipe:
Amount per serving
Calories
Calories from fat
Total Fat
Saturated Fat
Cholesterol
Sodium
Total Carbohydrates
Dietary Fiber
Sugars
Protein
Vitamin A
Vitamin C
Calcium
Iron

Processing

Milk is commercially available in many forms. These include powdered dried milk, evaporated milk, sweetened condensed milk, and shelf-stable milk.

Milk can be processed into cream, butter, yogurt, ice cream, or cheese.

Dietary tolerance

Lactose in animal milk is digested with the help of the enzyme lactase produced by the bodies of infants. In humans, production of lactase falls off in adulthood, in many cases to the point where lactose becomes indigestible, leading to lactose intolerance, a gastrointestinal condition that afflicts many.

Casein is the main protein in animal milk, and is particularly concentrated in cheese made with animal milk. Whey is the other major protein in animal milk, and is separated from casein in the manufacturing process of cheese made with animal milk. Both proteins can provoke undesirable symptoms in some people, although casein intolerance is more widely recognised and is often connected with gluten intolerance and coeliac disease.

Terminology

The term 'milk' is also used to refer to white or off-white creamy liquids made from plants. These include soy milk, rice milk, almond milk, oat milk, hemp milk, coconut milk, and banana milk. These can either be made at home or bought commercially; they rarely include any animal milk by-products, and so can be eaten by those who can't digest lactose or casein. Plant milks can sometimes be substituted for animal milk in recipes, although they may impact the flavour or texture of the resulting dish. Plant milks should be refrigerated, especially after opening, and used within a few days.

Uses

Milk possesses the ability to reduce the perceived spiciness level of some spicy foods thanks to the casein which binds with capsaicin oil and then carries it away.

Gallery

A glass of cow's milk
Steamed milk for use in hot beverages
Chocolate milk
Milk powder