Salt, sugar, vinegar, drying or freezing
vineger
to keep food/make food last longer and to storage food
they are added to make food look better and last longer....not good for you
it can make our food last longer
To make roses last longer with sugar, mix 2 tablespoons of sugar with 2 tablespoons of white vinegar in a vase of water. The sugar provides nutrients for the flowers, while the vinegar helps prevent bacteria growth. Change the water every few days and trim the stems to keep the roses fresh for a longer period of time.
No, there is no food item that has such effect.
Additives are put into food to make it taste better, look better and last longer. Sometimes, substances are merely applied topically. For example, ethylene gas is used to change the color of green oranges to orange, and carbon monoxide is used to restore or preserve cut meat's bright red color. Even at home, we put additives into our food, for the same reasons. Salt, sugar and vinegar can be used to help preserve food.
The pickling process is used to preserve food. Usually vinegar is used, which is an acid (acetic acid). The rotting process involves bacteria. An acid solution kills most bacteria, so stops or slows down the rotting process.
There isn't a way to make food last forever. However, you can extend the shelf life of certain things. For example, meats, fruits, veggies and breads can last a while longer if you freeze them.
Malians used salt to make there food last longer.
The purpose of a vinegar diet is to make you feel full longer, and to irritate and speed up the break down of food in your stomach. It's a very good technique for aiding digestion.