A. fermentation, it can be used to change low acid foods into high acid foods which gives them a longer shelf life.
The food preservation method that can be performed at home is fermentation.
Answer: Option A
Explanation:
Food preservation is an ideal technique to be followed at home because a unreserved food tends to get spoil. When we leave food outside for more than 3 hours it is spoil by undesirable microbes, even if we refrigerate food tends to get spoil by about 4- days. Hence fermentation is a preservation of food using desirable microbes.
