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METHODS OF COOKING FOOD

Cooking is the term applied when heat is used in preparing

foods. There are different methods of cooking which can be group

according to the wet heat is applied. The two methods are

commonly distinguished as using of Moist Heat Cooking and Dry

Heat Cooking. Moist Heat Cooking the heat is transferred by water,

water based liquid or steam; while Dry Heat Cooking the heat is

transferred by air, radiation, fat or metal. Below are the different

classifications of cooking methods.

COOKING

Moist Heat Cooking

Scalding- (from the Latin word calidus, meaning hot) is a

form of thermal burn resulted from heated fluids such as

boiling water or steam. It is also accomplished in water

heated to around 185 °F (85 °C), usually in a double

boiler, which conducts the heat of the water, contained in

a bigger pan, to a smaller pan containing the food, thus

avoiding contact between food and water. This technique

is commonly used to prepare milk for breads and

custards. At just above the scalding temperature, water

begins to circulate visibly and to shiver; at this point,

foods, notably eggs and fish, may be poached.

Simmering- Is a food preparation technique in which foods

are cooked in hot liquids kept just below the boiling point

of water, but higher than poaching temperature. To keep

a pot simmering, one brings it to a boil and then reduces

the heat to maintain the temperature.

Braising- (from the French word braiser) is a combinationcooking

method that uses both wet and dry heats:

typically, the food is first sautéed or seared at a high

temperature, then finished in a covered pot at a lower

temperature while sitting in some (variable) amount of

liquid (which may also add flavor).

Parboiling- Is the partial boiling of food as the first step in

cooking. The word is from the Old French 'parboillir' but by

mistaken association with 'part' it has acquired its current

meaning. The word is often used when referring to

parboiled rice.


Steaming- Is a method of cooking using steam. This is

often done with a food steamer, a kitchen appliance made

specifically to cook food with steam, but food can also be

steamed in a wok. In the American southwest, steam pits

used for cooking have been found dating back about

5,000 years.

Poaching- Is a cooking technique that involves cooking by

submerging food in a liquid, such as water, milk, stock or

wine or in a tray. Poaching is differentiated from the other

"moist heat" cooking methods, such as simmering and

boiling, in that it uses a relatively low temperature (about

160–180 °F (71–82 °C)).

Stewing- A stew is a combination of solid food ingredients

that have been cooked in liquid and served in the

resultant gravy. ... Stewing is suitable for the least tender

cuts of meat that become tender and juicy with the slow

moist heat method. This makes it popular in low-cost

cooking.

Boiling- Boiling is the method of cooking food in boiling

water or other water-based liquids such as stock or milk.

Simmering is gentle boiling, while in poaching the cooking

liquid moves but scarcely bubbles.

Blanching- Blanching is a cooking process wherein a food,

usually a vegetable or fruit, is scalded in boiling water or

oil, removed after a brief, timed interval, and finally

plunged into iced water or placed under cold running

water to halt the cooking process. Blanching foods helps

reduce quality loss over time.

Dry Heat Cooking

Baking- Baking is a method of preparing food that uses

dry heat, normally in an oven, but can also be done in hot

ashes, or on hot stones. The most common baked item is

bread but many other types of foods are baked. Heat is

gradually transferred "from the surface of cakes, cookies,

and breads to their center.

Broiling- Broiling, cooking by exposing food to direct

radiant heat, either on a grill over live coals or below a gas

burner or electric coil. Broiling differs from roasting and


baking in that the food is turned during the process so as

to cook one side at a time.

Frying is the cooking of food in oil or another fat. Similar

to sautéing, pan-fried foods are generally turned over

once or twice during cooking, using tongs or a spatula,

while sautéed foods are cooked by "tossing in the pan". A

large variety of foods may be fried.

Stir Frying- (Chinese: 炒 ; pinyin: chǎo) is a Chinese cooking

technique in which ingredients are fried in a small amount

of very hot oil while being stirred in a wok. The technique

originated in China and in recent centuries has spread into

other parts of Asia and the West.

Deep-frying- (also referred to as deep fat frying) is a

cooking method in which food is submerged in hot fat,

most commonly oil, as opposed to the shallow oil used in

conventional frying done in a frying pan. Normally, a deep

fryer or chip pan is used for this; industrially, a pressure

fryer or vacuum fryer may be used.

Grilling- Is a form of cooking that involves dry heat applied

to the surface of food, commonly from above, below or

from the side.[1] Grilling usually involves a significant

amount of direct, radiant heat, and tends to be used for

cooking meat and vegetables quickly. Food to be grilled is

cooked on a grill (an open wire grid such as a gridiron with

a heat source above or below), using a cast iron/frying

pan, or a grill pan (similar to a frying pan, but with raised

ridges to mimic the wires of an open grill).

Sautéing- Or sautéing is a method of cooking that uses a

relatively small amount of oil or fat in a shallow pan over

relatively high heat. Various sauté methods exist, and

sauté pans are a specific type of pan designed for

sautéing

Pan broiling- Is a cooking technique used for thin steaks,

thin chops and fish fillets. It is a dry cooking method done

in a frying pan on top of the stove with no added fat or

liquid. It sears the surface of the meat, sort of like proper

broiling would.

USE HEAT COOKING


Heat is the process of preparing food by cooking and toasting.

Cooking is the term applied when heating affects the entire mass of

food, while toasting concerns the first effect of heat on the surface.

Without heat, foods are unpalatable and not safe to eat. The food

produced changes depend upon the methods of heat transfer, like

time of heating, the temperature reached the surface and within the

mass of food, and the nature of food itself.

METHODS OF HEAT TRANSFER

There are sources of heat transfer to the food by convection,

conduction and microwave emission. These factors affect the

intensity and rate of cooking.

Convection- Is the transfer of heat energy by direct contact.

Convention- Is the movement of heat by actual motion of

matter.

Radiation- Is the transfer of energy with the help of

electromagnetic waves.

Many foods are cooked by conduction when heat flows from one

material to another. Metals are good conductor of heat, thus metal

pots and pans are widely used in food preparation. Foods are also

cooked by convection currents (as in food processing) and by

radiation. With radiation, only the surface is cooked by the waves of


energy, the interior is cooked by conduction. Heat, a form of energy,

increases the molecular motion of a substance. The temperature of

a substance is the measure of the vigor of this motion. Freezing and

boiling points are related to molecular structure. The substance with

the higher molecular weights requires a higher temperature for a

change of state to occur. The heat required to change a substance

from frozen to liquid state is known as the heat of fusion.

Measurement of Heat or Temperature

The usual result of an increase in temperature is an expansion

in size. Hence, a convenient way of measuring temperature is by

noting the expansion of a column of mercury in a thermometer

scale. Mercury expands uniformly at different temperature and has

an extensive range between the freezing point -39°F and its boiling

point 675°F. There are two kinds of scale in a thermometer: the

Fahrenheit and the Centigrade.

Heat is measured by degrees Centigrade or Celsius (°C) or

degrees

Fahrenheit (°F).

The degree of hotness or intensity of heat is expressed as the

temperature of the object (food). To express cooking temperatures,

the Metric

System using °C and °F are used.

The Fahrenheit scale is named after a German Physicist. It has

32° for its freezing point and 212° for its boiling point. There are

212 equal divisions between 0° and the boiling point. The

Centigrade Scale gets its name from Centum, Latin for “hundred”

and Grade which means

“step.” In the Centigrade Scale, the freezing point is marked 0° and

the boiling point is marked 100°. The scale between these two

points is marked off into 10 equal divisions or degrees.

PURPOSE OF COOKING

Some foods, such as fruits and vegetables, are highly palatable

when eaten raw. However, most foods must be cooked to be

acceptable to the human palate. The main purposes of cooking food

are: • to improve its natural flavor and palatability; • to destroy

pathogenic organisms and injurious substances which may be found

on raw foods; • to improve its digestibility; and• to make its

maximum nutritive value available in a palatable form.

Natural Flavor and Palatability


Fruits and vegetables are highly palatable because of its natural

texture and nutritive value when they bare remain unsoaked and

uncooked. The flavor of the food is depends on its influence of flavor

and to maintain the natural flavor of the object. Used a short

process of cooking without adding any flavoring materials.

When mixing some food, you can developed an interested

blend. The process of cooking this food are long time to develop the

new flavor. For example, casserole dishes, pudding, and the local

Sinigang and Nilaga are enjoyed for their interesting blend of

different flavors. Overcooking, however, is destructive of flavors and

food may become soggy or stringy.

The effect of cooking on the color and texture of food has a

great influence on flavor. The methods of cooking used must be

those which are conserving of the natural color of food or

developing the new, desired color.

Pathogenic Organisms and Injurious Substances on Food

All foods in their natural state are subject to spoilage or

deterioration because of pathogenic organisms and injurious

substances found in them. Microorganisms, such as molds, yeasts,

and bacteria, grow at certain temperature generally between 0

degree to 75 degrees. However, with heat application or exposure

to temperatures near the boiling point of water, microorganisms are

easily killed.

Illness may be caused by foods that naturally contain

poisonous

Substances and foods that are contaminated with pathogenic

microorganisms and toxins. Cooking, through application of heat,

destroys the injurious substances in raw food and renders the food

in wholesome and safe form.

Most cooking methods produce an interior temperature of 140

Degrees to 185 degrees Fahrenheit. Some baked products may

reach a Temperature close to 21 degrees Centigrade. This

temperature range is one in which many harmful organisms do not

grow. All portions of food must reach and maintain a certain

temperature within this range.

Digestibility of Food

All foods undergo softening as a result of cooking, which may

render food more digestible. Some cooking processes are identical

with the processes involved in the breakdown of food during

digestion. For example: the transformation of starch into dextrin’s

and the hydrolyses that takes place during the cooking of meat


break down the protein collagen in connective tissues. Digestibility

to a layman, refers not only to the completeness of digestion and

absorption but also the general feeling and after effect of eating.

When food is hard to digest, it is easily manifested by a feeling of

discomfort. Some fruits and vegetables have to be cooked to be

palatable, soft and easy to digest.

Maximum Nutritive Value

Some foods, like fruits and vegetables group, are highly

palatable when eaten raw because uncooked and unsoaked foods

retain a good portion of their nutritive value. However, in time of

food poisoning outbreak, people are warned not to eat raw or halfcooked

food.

The most important nutritive change, which occurs in natural

food through cooking, is the loss of its water soluble nutrients,

hence, the retention of these nutrients in foods is directly related to

the amount of water used in cooking. Destruction of vitamins may

also be brought about by the action of heat. Studies have shown

that Ascorbic acid and Thiamine are unfavorably affected by heat.

All these, however, are small losses if compared to the significance

of the effects of cooking to assure safety from food-borne diseases.

There are some raw foods that have to be cooked in order that

their nutritive value can be used by the body. For example, root

crops have to be cooked to fully enjoy their carbohydrates content.

The protein content of most fish and meat are fully utilized when

cooked. To develop, enhance, or alter the flavor of foods and to

maximize its nutritive value, control must be exercised by the

method of cooking used and the length of cooking time

COOKING MEDIUM

The methods of cooking are classified according to the cooking

medium, namely, air, water, steam, fat, and a combination of one or

more of these mediums. Air and Heat as Cooking Mediums

Foods are also cooked by convection currents or the transfer of

kinetic energy by heated air or liquid, and by radiation or transfer of

kinetic energy by means of waves.

Broiling is cooking over or

under a source of direct

heat such as coals, a gas

burner, or a glowing electric

unit. Much of the heat is

derived from radiant energy;

some is conducted from the air and from the broiler rack.


Roasting is cooking on a spit

before an open fire or by

covering with hot coals.

Nowadays, the term is used

synonymously with baking

in meat cookery.

Baking is cooking in an

oven, whereby, convection

cur rents aid in heating the

air and equalizing the oven

temperature.

Water as a Cooking Medium

The methods of cooking with water as the medium are: boiling,

simmering, and stewing.

Boiling - is cooking in water at boiling point. This temperature

may be recognized by the presence of many bubbles of steam rises

to the top and breaks. Incomplete cooking by boiling is called

parboiling. It is used when another method is to be employed for the

remainder of the cooking time, or when strongly flavored or other

water soluble constituents are to be removed and fresh water is

added for continued cooking by boiling.

Simmering - is cooking in a bath of water somewhat below the

boiling point, 180 to 210 degrees F (82-99 degrees C). The presence

of bubbles of steam, which disappears before they reach the

surface, is an education of this range.

Stewing is simmering or boiling in water enough to cover the

ingredient.

Poaching – Water is heated to a temperature of 160° to 180°F

(71° to 82°C). Small motionless bubbles appear in the bottom of the

pan. Poaching is used to prepare delicate foods like fish and eggs.


Simmering – Water is heated just below the boiling point not

less than 180°F (82°C). It is characterized by gently rising bubbles

that barely break the surface. Simmering is used for cooking tough

cuts of meat to make it tender.

Boiling – Water is heated to reach 212°F (100°C), a temperature

at which water bubbles rapidly. The high temperature of boiling

water is used to cook paste and tougher-textured vegetables like

dried beans.

Steam as a Cooking Medium

The methods of cooking with steam as the cooking medium are:

steaming, waterless cooking, and pressure cooking.

Steaming refers to cooking in steam arising from added water.

Waterless cooking is cooking with steam formed from the water

originally present in food.

Pressure cooking is cooking with steam under pressure; since

the heat of vaporization does not escape, the temperature rises

steadily to a high point. This type of cooking requires the use of a

pressure cooker, a special type of cooking utensil. Fat as a Cooking

Medium

Fat is used as the cooking medium in sautéing, deep-fat frying,

and pan broiling.

Sautéing is cooking in a lightly greased pan allowing the

product to be turned over or “flipped” for complete cooking.

Deep-Fat Frying refers to cooking in an amount of fat sufficient

for immersion of the food. The temperature required for frying runs

as high as 385 degrees F or 196 degrees C. Combination of Cooking

Mediums

A combination of more than one method is used in braising,

fricasseeing, and pot roasting.

Braising represents a combination of sautéing and subsequent

cooking in a small amount of liquid in a covered utensil.

Fricasseeing is almost similar to braising. Braising and

fricasseeing are in fact synonymously applied to meat and poultry.

Pot roasting is the term commonly used when a large piece of

meat is cooked by the preceding methods.

Electronic Cooking

Electronic cooking or microwave cooking is done on an

electronic range. Electronic cooking does not involve a cooking


medium. In an electronic oven, a magnetron tube is used to change

electricity to high frequency microwaves; the micro waves are

absorbed by the food, causing agitation of the molecules or friction.

By creating molecular friction, energy is produced in food. This

action results in heating of the food. The food cooks, as in

conventional cooking, by becoming hot first. The interior of the food

mass is cooked by heat conducted to it from the surface. Aluminum,

tin and stainless steel utensils and vessels are not used in

microwave cooking because they cut down its efficiency by

shielding the food. Paper, glass, china, and earth ware are

preferable. Much time is saved in microwave cooking; and food will

not burn.

THE STANDARDIZED RECIPE

A recipe is a set of instructions for making a food dish from

various ingredients. When a recipe is one in which the amounts and

proportions of the ingredients and the methods of procedure will

consistently produce a high quality product, it becomes a

standardized recipe.

A recipe has two important parts:

• A list of ingredients and

• A description of the method for putting them together.

Principles to be followed in Recipe Construction

Good recipes are constructed not only to obtain a good product

but also to be sure of an efficient and orderly procedure that will

minimize the time of preparation. Here are certain principles to

follow:

1. The recipe should be simple, easy to read, and interesting to the

reader.

2. The ingredients should be listed in the order they are to be used.

3. Exact measurements should be indicated; if possible

abbreviations should be avoided.

4. If the process is carried out after measurement, the terms are

placed under the ingredient.

5. Whenever possible, it is desirable to use simple measurements.

6. Specify the particular type of ingredient to be used. Thus, if cake

flour is the preferred ingredient, specify as 2 cups cake flour instead

of 2 cups flour.


7. Use the generic names of the ingredients rather than brand

names.8. Short and clear sentences that give the necessary

information help to make directions understandable.9. Use the

precise term to describe a cooking process or a preparation method.

Do not say mix when you mean fold or beat.10. Specify the size of

the baking pan or utensils needed. State clearly how preparation

should be made. For example: oiling greasing lining with wax

paper11. State information regarding temperature and cooking time

to insure successful results. A statement to describe the stage is

most helpful. For example: Bake for 25 minutes at 350°F, until it is

golden brown.12. Every recipe should indicate its yield in terms of

average servings

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