EPP6 -Q4WEEK 5: Different Ways of Food Preservation

Read each item carefully. Choose the letter of the correct answer. Write your
answer on a separate sheet of paper.
1. Food preservation is the process of preserving food for long periods of time which can
help__________.
A. less production C. preservation
B. food shortage D. availability of food

2. Which of the following methods of preservation is the best way in making tapa, longganisa,
and ham?
A. salting C. curing
B. smoking D. pickling
3. Why drying method is an ideal way of preserving food?
A. easy to store, carry and requires C. easy to sell in the market
no refrigeration D. hard to make
B. expensive and time consuming

4. Which of the following preserved foods are good source of quick energy and wholesome
nutrition because it only lost its moisture?
A. pickled C. cellared
B. sweetened D. dried

5. How do bagoong, burong manga, mustard, salted egg and fish sauce were preserved?
A. refrigerating C. pickling
B. salting D. freezing

6. Freezing delays spoilage and keeps foods safe by preventing microorganisms from growing
and by slowing down the enzyme activity that causes food to spoil. What is the exact freezing
point of food preserved?
A. 0 °C C. 1 °C
B. 10 °C D. 100 °C

7. In preserving processed food like longganisa and tocino, what solution is used?
A. sugar, salt, vinegar and chili C. sugar, salt, vinegar and tomato
B. sugar, salt, vinegar and salitre D. sugar, salt, vinegar and soysauce

8. Freezing is one of the most effective methods of preserving food. Which of the following
can be stored in the freezer for several months at a temperature of 0°C or below?
A. fruit C. vegetables
B. meat D. bread

9. Most fruits and vegetables are preserved through pickling. What do you call the solution
which contains salt and acid (usually vinegar) used to make pickled products?
A. prine solution C. brine solution
B. twine solution d. wine solution
10. Tony’s mother wants to cook ube jam and jelly for her friend, which of
the following method is best suited in making it?
A. curing C. salting
B. sweetening D. freezing
Food Preservation Processes/Methods
Food processing is the process of changing raw ingredients into
food by means of physical or chemical ways. Food preservation
on the other hand is the process of treating and handling food to
stop, slow down spoilage to prevent food borne illness and
extend its shelf-life.
Methods of Food Preservation
1. Drying
Food drying is one of the oldest methods of preserving food. Drying food is simple, safe and
easy to learn. It is the easiest and the most common method of food preservation. The
moisture content of the food is removed. Being easy to store and carry and requiring no
refrigeration makes dried foods ideal for domestic use as well as for use in the rough
outdoors.
Moreover, dried foods are good sources of quick energy and wholesome nutrition, since the
only thing lost during preservation is moisture.
2. Salting
Salting is a method of preserving food that was more common before
modern refrigeration. Salting preserves food by drawing water out of
the food, preventing bacteria growing and spoiling the food.
Salt is applied to the food to be preserved like meat, fishes, shrimps,
fruits and eggs. Products made from salting are bagoong, burong
manga, mustard, salted egg and fish sauce.
3. Freezing
Freezing delays spoilage and keeps foods safe by preventing
microorganisms from growing and by slowing down the enzyme activity that
causes food to spoil.
It is a quick and convenient way to preserve food such as meat, poultry, and
fish, which are stored under 0 °C or 32 °F until they are to be consumed.

4. Refrigeration
Refrigeration is one of the most popular forms of food preservation in use
today. It keeps at low temperature to prolong their freshness like eggs, milk,
fruits, vegetables, and dairy products.
5. Smoking
Smoking is the process of flavoring, browning, cooking or preserving
food by exposing it to smoke from burning or smoldering material, most
often wood.
Foods such as cured meat and fish are exposed to smoke and
preserved. Examples of which are tinapa, tapa, and longganisa.
6. Curing
Through the use of a combination of salt, sugar and either nitrate or
nitrite, fish and meat can be successfully preserved and even add
flavoring to them.
Curing is a method done by soaking or injecting meat with preservatives
like sugar, salt, vinegar, and salitre solution. Examples are longganisa
and tocino.

7. Pickling
Pickling is the process of preparing a food by soaking and storing it in a a brine containing
salt, acid (usually vinegar), or both, a process which can be preserve otherwise perishable
foods for months.
The resulting food is called a pickle. It can be used with most foods, including fruits,
vegetables, meats, seafood, and eggs.
8. Canning
Canning is an important, safe method for preserving food if practiced
properly. It involves placing foods in jars or similar containers and
heating them to a temperature that destroys micro-organisms that cause
food to spoil.
During this heating process air is driven out of the jar and as it cools a
vacuum seal is formed. This vacuum seal prevents air from getting back
into the product bringing with it contaminating micro-organisms.
Sardines, tomato sauce, pineapple juice are examples of processed food
sealed in airtight cans.
9. Sweetening/Sugar Preservation
Sweetening or Sugar Preservation is a food preservation method similar
to pickling. Sugaring is the process of desiccating a food by first
dehydrating it, then packing it with pure sugar. This sugar can be
crystalline in the form of table or raw sugar, or it can be a high sugar
density liquid such as honey, syrup or molasses.
a. Jam the fruit is mashed and cooked with sugar as main ingredients.
b. Jelly clear fruit juice cooked with sugar, which gelatinizes in cooking.
10. Sterilization
Sterilization is the process that involves using heat to kill microorganisms
and bacteria. The food item must be stored properly to have shelf life of
up to several years.