Question

You have seen the in most of the packed food stuff , an expiry date is usually printed. If we use that food stuff after expiry date, it gives a bad smell and a bad taste.
(i) Why dose food give bad taste and bad smell after expiry date?
(ii) What methods are used by the food industry to prolong the life of packed food stuff?
(iii) What values are expressed in the above paragrah?

Answer 1

Dear Student,

a) After expiry date of food, it smells very bad because oil and fat gets oxidised and becomes rancid. This process is known as rancidity.

b) (ii) Methods are used by the food industry to prolong the life of packed food stuff are:

a) Freezing the product
b) Heating the product
c) Drying
d) Use of chemicals
e) Modifying products atmosphere
f) Product irradiation

c) We should be careful while buying and using any packed food. We must check its expiry date and date of manufacture.
It shows that we should be aware and careful about our health and food products that we are using are healthy.

Regards