Question

How does air tight box help in food preservation?
How do we know that a potato is spoilt? What will happen if
spoilt food?
How do we find whether the food “Bread” is fresh or not?
What are the ingredients of the preserved food “Mango pickl
Which helps to preserve food for longer?
Which is essential for making papad?
If you are going on a picnic, which types of food will yo
you so that it remains unspoiled for a longer time?
In which season does the food remain unspoiled for a lo
modern methods of food nreservation
a​

Answer 1

Answer:

the air will not go in and and food will not become hard