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FOOD HYGEINE AND
PREPARATION
BY ABATTA JOY
FOOD HYGIENE AND
SAFETY
LESSON 0BJECTIVES
1 Explain the meaning of food hygiene
2 Give the importance of food hygiene.
3 Prepare a simple snacks and drinks
By the end of the lesson, students should be able to:
HYGIENE
Hygiene simply means cleanliness. It is the act of keeping our food,
clothes, body, etc. clean from harmful bacteria.
● FOOD HYGIENE
Food hygiene is referred to as the observance and practice of
hygiene or practicing sanitary rules to prevent food contamination,
poisoning and spoilage.
It is also referred to the proper handling and caring of food. It is also
a means of preventing harmful bacteria from growing in food by
keeping the hands, the kitchen, cooking and eating utensil clean
and by observing good sanitation.
IMPORTANCE OF FOOD
HYGIENE
● 1. Food hygiene will prevent our food from
being contaminated.
● 2. Food hygiene helps us to consume
wholesome food thereby living a healthy live.
● 3. It will prevent wastage of food and that will
also prevent wasting of money.
GUIDELINES AND RULES
FOR FOOD HYGIENE
● 1. Buy food that are wholesome and store them properly.
● 2. Avoid buying expired foods.
● 3. Do not buy canned food with dented or swollen can.
● 4. Cover food during and after cooking to prevent it from
being contaminated.
● 5. Cook with clean water and utensils.
● 6. Ensure that your hands are clean when you are handling
food.
● 7. Wash cooking utensils, cutting boards and other surfaces
thoroughly before and after each use.
GUIDELINES AND RULES
FOR FOOD HYGIENE
● 8. Wash fresh fruits and vegetables thoroughly.
● 9. Use clean plates for cooked food. Never use the same plate
that held the raw food.
● 10. Wash the tops of cans such as canned milk, corned beef,
salad cream, etc., before opening them.
● 11. All storage equipment should be kept clean to keep away rats,
flies, cockroaches, etc.
● 12. Wash your hands before and after handling food and use
clean kitchen napkin to dry the hands.
● 13. Cover and store leftover food in the refrigerator.
GUIDELINES AND RULES
FOR FOOD HYGIENE
● 14. Cover your hair in the kitchen so as to keep the hair
out of the food.
● 15. Food should be provided in dishes with covers to
prevent pests from touching them.
● 16. Dry foods should be stored in containers with tight
lids while perishable foods should be kept in the
refrigerator.
FOOD PREPARATION
Food preparation involves the picking of dirt from foods
like cereals, peeling the back, picking and cutting of
vegetables, etc. before placing them on fire. It refers to
all the activities/tasks performed in the kitchen in order
to prepare a particular meal.
● COOKING
Cooking is the process of applying heat to make food
soft, palatable and to destroy some germs in the food.
REASONS FOR COOKING
FOOD
● 1. Cooking makes food easier to eat.
● 2. It makes food more appetizing and palatable.
● 3. It makes food easier to digest.
● 4. Cooking also destroys many harmful micro-
organisms present in food thereby making it safe to
eat.
● 5. It helps to preserve foods.
● 6. It improves the appearance of food.
METHODS OF COOKING
1. BOILING: This is the process of cooking food in boiling water until it is soft and tender e.g. yam, rice,
etc. The food comes in direct contact with the water.
Advantages of Boiling
a) It is an easy and quick method of cooking.
b) Boiled foods digest easily.
c) It does not need constant attention.
d) It is a cheap method of cooking.
e) It is suitable for all health condition.
f) Two or more foods can be boiled at the same time.
Disadvantages of Boiling
a) Some food nutrients such as water-soluble vitamins and some minerals can be lost in the boiling water.
b) Boiling does not develop the colour and flavour of food.
c) Food often looks unattractive.
d) It is rather long and slow method of cooking when compare with frying and grilling.
e) It may lead to breakage of food.
METHODS OF COOKING
2. STEWING: Stewing is a method of cooking food slowly or at low heat in a
small quantity of water, in a well-covered pot for a long time e.g. soups, tough cuts of
meat, old root vegetables, etc.
Advantages of Stewing
a) It makes tough food tender and digestible.
b) It needs very little attention.
c) Food nutrients are conserved or retained in the stewing liquid.
d) Very little fuel is required during cooking.
Disadvantages of Stewing
a) It is a long and slow method of cooking.
b) The long cooking destroys some of the valuable nutrients in the food.
c) It requires more time and attention than boiling to ensure the food does not burn.
METHODS OF COOKING
3. STEAMING: It is cooking food in the steam from boiling water e.g. moi-moi,
pudding, etc. There is no direct contact between the food and the boiling water.
Advantages of Steaming
a) Steamed food is light and easily digestible.
b) There is no loss of food nutrients in to the water during steaming.
c) It is a conservative method of cooking.
d) There is little risk of over-cooking.
e) It is an economical and labour- saving method of cooking.
Disadvantages of steaming
a) It is a slow method of cooking.
b) Not many types of food can be cooked by steaming.
c) Steamed foods are not as palatable and attractive as foods cooked using other
methods.
METHODS OF COOKING
4. FRYING: Frying is the method of cooking food in hot oil or fat e.g. akara balls, fish,
meat, eggs, etc.
Types of Frying
a. Shallow Frying: This is frying with just little amount of oil to cover the surface of the
frying pan and to prevent burning. Suitable for frying are pan cakes, omelettes, fish, etc.
b. Deep Or French Frying: This is when a lot of oil or fat is used in cooking foods. The oil
is usually poured in a deep pan and is heated to boiling point; then the food is put inside the
oil. The oil used must cover the food. Suitable foods for deep frying are chin-chin, doughnut,
puff-puff, bean cakes, etc.
c. Dry/Self Frying: This is a method used for foods which already contain fat. The fat
melts and runs out of the food. It requires less heat. Bacon, herrings, sausages, etc. can be
cooked this way.
METHODS OF COOKING
Advantages of Frying
a) It is a fast and quick method of cooking.
b) Fried foods are attractive and tasty.
c) Fried foods are very filling and delay the onset of hunger.
Disadvantages of Frying
a) It needs constant attention.
b) Fried foods are not easily digested. So it not a suitable method for
preparing foods for infants and children, invalids and convalescent, aged and
people with weak digestive systems.
c) Fried foods become greasy and unappetizing when cold.
d) If the fat is too hot, the food may be burnt and not cooked.
METHODS OF COOKING
5. BAKING: Baking is cooking foods by dry heat in an enclosed pre-
heated space by direct radiation. Baking usually takes place in the oven. Dry
heat is applied and the food is surrounded by a current of hot air. The hot air
then cooks the foods. It is the method suitable for cakes, pastries, bread,
biscuits, etc.
● Rules for Baking
a) Always pre-heat oven before putting the food.
b) Use oven gloves to bring out food from the oven.
c) Oven trays should not be overloaded.
d) Avoid frequent opening of the oven door.
e) Do not bang the oven door, but close it gently.
f) Do not bake foods that give out moisture with crispy and dry foods.
METHODS OF COOKING
Advantages of Baking
a) Baked foods are attractive and appetizing.
b) There is no loss of soluble nutrients.
c) It is economical on fuel as more than one dish can be baked at a
time.
Disadvantages of Baking
a) It requires constant attention, otherwise foods may be burnt.
b) It wastes fuel when baking only one dish.
c) It requires a careful temperature control and skills.
GUIDELINES FOR SUCCESSFUL COOKING
AND SERVING OF SIMPLE MEALS
1. Plan what is to be cooked. Meals should be balanced.
2. Write a shopping list and buy the necessary ingredients.
3. Arrange the kitchen and make sure that all the utensils and material are
available and within easy reach.
4. Clean all the required utensils.
5. Make yourself ready by doing the following;
- Wear clean apron.
- Tie your hair with clean scarf.
- Wash your hands thoroughly.
- Keep your fingernails short and remove all bangles and rings.
- Avoid sneezing into food.
- Wrap any sore in your hand with water proof plaster.
- If you have to visit toilet while cooking, ensure you wash your hands with soap
and sponge before touching any food.
GUIDELINES FOR SUCCESSFUL COOKING
AND SERVING OF SIMPLE MEALS
6. Cook by the best method in order to have maximum
retention of food nutrients.
7. Avoid accidents by adopting safety procedures in the
kitchen.
8. Tidy up the kitchen after cooking.
9. Empty the dust bin.
10. Serve meals with clean dishes and cutlery.
ASSIGNMENT

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FOOD HYGEINE AND PREPARATION year 9.pptx

  • 3. LESSON 0BJECTIVES 1 Explain the meaning of food hygiene 2 Give the importance of food hygiene. 3 Prepare a simple snacks and drinks By the end of the lesson, students should be able to:
  • 4. HYGIENE Hygiene simply means cleanliness. It is the act of keeping our food, clothes, body, etc. clean from harmful bacteria. ● FOOD HYGIENE Food hygiene is referred to as the observance and practice of hygiene or practicing sanitary rules to prevent food contamination, poisoning and spoilage. It is also referred to the proper handling and caring of food. It is also a means of preventing harmful bacteria from growing in food by keeping the hands, the kitchen, cooking and eating utensil clean and by observing good sanitation.
  • 5. IMPORTANCE OF FOOD HYGIENE ● 1. Food hygiene will prevent our food from being contaminated. ● 2. Food hygiene helps us to consume wholesome food thereby living a healthy live. ● 3. It will prevent wastage of food and that will also prevent wasting of money.
  • 6. GUIDELINES AND RULES FOR FOOD HYGIENE ● 1. Buy food that are wholesome and store them properly. ● 2. Avoid buying expired foods. ● 3. Do not buy canned food with dented or swollen can. ● 4. Cover food during and after cooking to prevent it from being contaminated. ● 5. Cook with clean water and utensils. ● 6. Ensure that your hands are clean when you are handling food. ● 7. Wash cooking utensils, cutting boards and other surfaces thoroughly before and after each use.
  • 7. GUIDELINES AND RULES FOR FOOD HYGIENE ● 8. Wash fresh fruits and vegetables thoroughly. ● 9. Use clean plates for cooked food. Never use the same plate that held the raw food. ● 10. Wash the tops of cans such as canned milk, corned beef, salad cream, etc., before opening them. ● 11. All storage equipment should be kept clean to keep away rats, flies, cockroaches, etc. ● 12. Wash your hands before and after handling food and use clean kitchen napkin to dry the hands. ● 13. Cover and store leftover food in the refrigerator.
  • 8. GUIDELINES AND RULES FOR FOOD HYGIENE ● 14. Cover your hair in the kitchen so as to keep the hair out of the food. ● 15. Food should be provided in dishes with covers to prevent pests from touching them. ● 16. Dry foods should be stored in containers with tight lids while perishable foods should be kept in the refrigerator.
  • 9. FOOD PREPARATION Food preparation involves the picking of dirt from foods like cereals, peeling the back, picking and cutting of vegetables, etc. before placing them on fire. It refers to all the activities/tasks performed in the kitchen in order to prepare a particular meal. ● COOKING Cooking is the process of applying heat to make food soft, palatable and to destroy some germs in the food.
  • 10. REASONS FOR COOKING FOOD ● 1. Cooking makes food easier to eat. ● 2. It makes food more appetizing and palatable. ● 3. It makes food easier to digest. ● 4. Cooking also destroys many harmful micro- organisms present in food thereby making it safe to eat. ● 5. It helps to preserve foods. ● 6. It improves the appearance of food.
  • 11. METHODS OF COOKING 1. BOILING: This is the process of cooking food in boiling water until it is soft and tender e.g. yam, rice, etc. The food comes in direct contact with the water. Advantages of Boiling a) It is an easy and quick method of cooking. b) Boiled foods digest easily. c) It does not need constant attention. d) It is a cheap method of cooking. e) It is suitable for all health condition. f) Two or more foods can be boiled at the same time. Disadvantages of Boiling a) Some food nutrients such as water-soluble vitamins and some minerals can be lost in the boiling water. b) Boiling does not develop the colour and flavour of food. c) Food often looks unattractive. d) It is rather long and slow method of cooking when compare with frying and grilling. e) It may lead to breakage of food.
  • 12. METHODS OF COOKING 2. STEWING: Stewing is a method of cooking food slowly or at low heat in a small quantity of water, in a well-covered pot for a long time e.g. soups, tough cuts of meat, old root vegetables, etc. Advantages of Stewing a) It makes tough food tender and digestible. b) It needs very little attention. c) Food nutrients are conserved or retained in the stewing liquid. d) Very little fuel is required during cooking. Disadvantages of Stewing a) It is a long and slow method of cooking. b) The long cooking destroys some of the valuable nutrients in the food. c) It requires more time and attention than boiling to ensure the food does not burn.
  • 13. METHODS OF COOKING 3. STEAMING: It is cooking food in the steam from boiling water e.g. moi-moi, pudding, etc. There is no direct contact between the food and the boiling water. Advantages of Steaming a) Steamed food is light and easily digestible. b) There is no loss of food nutrients in to the water during steaming. c) It is a conservative method of cooking. d) There is little risk of over-cooking. e) It is an economical and labour- saving method of cooking. Disadvantages of steaming a) It is a slow method of cooking. b) Not many types of food can be cooked by steaming. c) Steamed foods are not as palatable and attractive as foods cooked using other methods.
  • 14. METHODS OF COOKING 4. FRYING: Frying is the method of cooking food in hot oil or fat e.g. akara balls, fish, meat, eggs, etc. Types of Frying a. Shallow Frying: This is frying with just little amount of oil to cover the surface of the frying pan and to prevent burning. Suitable for frying are pan cakes, omelettes, fish, etc. b. Deep Or French Frying: This is when a lot of oil or fat is used in cooking foods. The oil is usually poured in a deep pan and is heated to boiling point; then the food is put inside the oil. The oil used must cover the food. Suitable foods for deep frying are chin-chin, doughnut, puff-puff, bean cakes, etc. c. Dry/Self Frying: This is a method used for foods which already contain fat. The fat melts and runs out of the food. It requires less heat. Bacon, herrings, sausages, etc. can be cooked this way.
  • 15. METHODS OF COOKING Advantages of Frying a) It is a fast and quick method of cooking. b) Fried foods are attractive and tasty. c) Fried foods are very filling and delay the onset of hunger. Disadvantages of Frying a) It needs constant attention. b) Fried foods are not easily digested. So it not a suitable method for preparing foods for infants and children, invalids and convalescent, aged and people with weak digestive systems. c) Fried foods become greasy and unappetizing when cold. d) If the fat is too hot, the food may be burnt and not cooked.
  • 16. METHODS OF COOKING 5. BAKING: Baking is cooking foods by dry heat in an enclosed pre- heated space by direct radiation. Baking usually takes place in the oven. Dry heat is applied and the food is surrounded by a current of hot air. The hot air then cooks the foods. It is the method suitable for cakes, pastries, bread, biscuits, etc. ● Rules for Baking a) Always pre-heat oven before putting the food. b) Use oven gloves to bring out food from the oven. c) Oven trays should not be overloaded. d) Avoid frequent opening of the oven door. e) Do not bang the oven door, but close it gently. f) Do not bake foods that give out moisture with crispy and dry foods.
  • 17. METHODS OF COOKING Advantages of Baking a) Baked foods are attractive and appetizing. b) There is no loss of soluble nutrients. c) It is economical on fuel as more than one dish can be baked at a time. Disadvantages of Baking a) It requires constant attention, otherwise foods may be burnt. b) It wastes fuel when baking only one dish. c) It requires a careful temperature control and skills.
  • 18. GUIDELINES FOR SUCCESSFUL COOKING AND SERVING OF SIMPLE MEALS 1. Plan what is to be cooked. Meals should be balanced. 2. Write a shopping list and buy the necessary ingredients. 3. Arrange the kitchen and make sure that all the utensils and material are available and within easy reach. 4. Clean all the required utensils. 5. Make yourself ready by doing the following; - Wear clean apron. - Tie your hair with clean scarf. - Wash your hands thoroughly. - Keep your fingernails short and remove all bangles and rings. - Avoid sneezing into food. - Wrap any sore in your hand with water proof plaster. - If you have to visit toilet while cooking, ensure you wash your hands with soap and sponge before touching any food.
  • 19. GUIDELINES FOR SUCCESSFUL COOKING AND SERVING OF SIMPLE MEALS 6. Cook by the best method in order to have maximum retention of food nutrients. 7. Avoid accidents by adopting safety procedures in the kitchen. 8. Tidy up the kitchen after cooking. 9. Empty the dust bin. 10. Serve meals with clean dishes and cutlery.
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