How can food preservation help the family?

Answer 1

Strictly speaking, food preservation won't increase income, unless the family starts selling canned and preserved foods, and is able to turn a profit from it.

However, food preservation can reduce spending by increasing shelf life of food and thus preserving food for future use.

Answer 2

Food preservation avoids loss/spoilage of the abundant fruits,vegetables or meat

Answer 3

It diminishes more waste in our environment.