Have you ever seen any food spoil? How do you know it's spoiled?
Yes,
I have often seen spoiled food at home. Food spoilage is known when white
fibers are visible on the surface, there is a bad smell and the taste changes
after a little taste.
How
did they know the bread was spoiled?
Grandmother
saw packing date and use by date on the bread. It had expired. Also, the packet
of bread had green-green stains, it had become hard. Seeing all this, Dadi
realized that the bread was spoiled.
What
can we learn from the details written on the packet?
From
the details written on the packet we can know the following details:
(1)
Date and year of manufacture of the item or substance in the packet (2) Price
of the item (3) Date and year of how long the item or substance in the packet
can be used (4) Weight of the item or substance on the packet (5) Details of
the items used to make the item or object of the packet
When
you buy something from the market, what should you look/read on the packet?
If
I want to buy something from the market, the following should be seen / read on
the packet: (1) Date or month and year when the item of the packet was
manufactured (2) Price of the item (3) Gross weight of the item (4) Expiry date
or month and year (expiry date) (5) What materials the item is made of (details
of ingredients (6) Manufacturer and brand name.
Different
types of food spoil for different reasons. Some foods spoil quickly, while some
foods last longer. List the seasons and conditions in which food spoils
quickly.
Food
spoils quickly in hot and rainy season. Food spoils quickly due to the
following reasons:
(1)
Milk deteriorates rapidly in summer. Also, it spoils quickly if not heated
properly.
(2)
Food spoils quickly if not kept covered and refrigerated.
(3)
Green vegetables spoil faster if they are kept at a warm temperature instead of
in the refrigerator.
(4)
Pickle spoils quickly in humid monsoon climate.
(5)
Cereals and pulses deteriorate rapidly in humid monsoon climate.
Why
was mango pulp mixed with jaggery and sugar and dried in the sun?
By
mixing jaggery and sugar in mango pulp and drying its thick liquid in the sun,
water is removed from it. Hence it forms a uniform layer in solid form.
Dehydrated mango papads do not spoil for long by sun drying. So it was dried in
the sun.
How
did the two brothers make mango papads? What did he do for it? Write it to the
point.
To
make mango papad, both the brothers first went to the market with their father
and brought mats, eucalyptus tree poles and ropes to make the manchdo. Also,
jaggery and sugar were bought.
The
two brothers built a platform in the porch of the house in a sunny place with
the things they had brought. Mats were tied on the platform. The pulp was
extracted from ripe mangoes. To separate the fibers from the mango pulp, strain
it through a fine cotton cloth. Alpesh crushed the jaggery until no lumps or
lumps remained. After that they mixed jaggery and sugar in equal proportions in
mava. Mahendra stirred the mixture with a large spoon to make it thick. Mom
then spread it thinly on a mavi mat and it was left to dry in the sunlight. In
the evening, he covered the saree to prevent dust from falling on the mat.
The
next day he again took some mango pulp. Jaggery and sugar are added to the
mava. Then he carried that maw to the next day's house. In this way for four
weeks he built the house on tar and dried it in the sunlight. Then it was taken
down from the platform and cut into small pieces. In this way both brothers
helped in making mango papad.
List
the different types of pickles you know and exchange them with your friends.
The
list of pickles as per my knowledge is: Mango pickle, Carrot pickle, Ghee
pickle, Garlic pickle, Lemon pickle, Amla pickle, Chilli pickle, Mix vegetable
pickle, Chana-Methi pickle, Ginger pickle etc.
How
to make mango pickle:
Wash
the Rajapuri mango and cut it into pieces with the peel. Cut all around close
to the cup.
Put
salt and turmeric in it and let it stay for two days. Then spread the pieces
out on a cloth to dry. (patharwan)
Put
salt in the center of a bowl, fenugreek dal around it, then raisin and
fenugreek seeds, put a little chilli, turmeric, hing around it. Heat the
mustard oil and put it in the middle of the kathrot. Combine all the spices.
When
the masala cools down, add crushed jaggery, chilli, cinnamon, pepper, cloves
and mango pieces. After stirring for a week, jar.
Discard
the stalks in the remaining water of salt and turmeric. When it swells up
properly, take out the thalli, cut it vertically and put it in the pickle.
Gandhidham
to Vapi by train is two days journey. If you had to go on that journey, what
dishes would you take with you? How do you pack it? List all packaged foods on
a blackboard. Which dish will you eat first?
I
would prefer to carry biscuits, wafers, fruit, dry fruits, bags, puri, potato
vegetable and water during the two days journey. I will pack the bags and puri
in a big steel box. I will pack the potato plant in a small steel box and put
the fruit in a bag. Pack dry fruits in cans or small bags. First of all I will
eat poori-shak followed by sachet-yogurt. Because whole-vegetables are good
only for a few hours, after which they spoil.
Glass
jars and bottles should be thoroughly dried in sunlight before filling with
pickles. Why is this done? do you remember What happened to the bread in the
experiment?
Glass
jars and bottles are dried in sunlight before filling the pickle. Because, the
moisture in it is dried by the heat of sunlight. Also, the jar becomes sterile
in sunlight. Hence pickles can be kept for a long time. Thus, doing so does not
spoil the pickle. In the next experiment, the moisture caused the bread to
spoil due to mold growing on it.
Give
examples of methods of food preservation.
(1)
By keeping in sugar syrup. E.g., marmalade, paste
(2)
By keeping in salt. E.g., Amla
(3)
By keeping in oil. E.g., pickles
(4)
By drying. E.g., papad, cut
What
is food wastage? Explain with example.
(1)
Taking more food in the plate while eating and leaving the food in the trash.
(2) Making more food than needed and throwing away the extra food. All these
things indicate food wastage.