Salt
Salt is used to preserve food along with adding taste.
yes
Which of the following is used as a food preservative
Bht and vitamin c
Salt was the only thing they had to preserve food.
Heat alone is not enough to preserve food unless it is used to dehydrate. Heat kills bacteria and pests and their eggs that may be in food and that assists in the preservation of food. In addition to heat food needs to be cured, smoked, canned, fermented, or frozen to preserve it for an extended period of time.
It is used for the flavour
tin
Additives can be used as ingredients to preserve, flavor, blend, enhance the texture, and color food. They play an important role in reducing serious nutritional deficiencies and promoting food safety. Their use ensures the availability of wholesome, appetizing, and affordable foods that meet consumer demands from season to season. Seems like good reasons for me!
Gamma
they used to cut a hole in the ice and store the food like a refrigerator.