Often, we can simplely use plastic bag to prolong the storage life of food. But in order to keep our healthy, we can choose some other methord . Food rotation is important to preserve freshness. When food is rotated, the food that has been in storage the longest is used first. As food is used, new food is added to the pantry to replace it; the essential rationale is to use the oldest food as soon as possible so that nothing is in storage too long and becomes unsafe to eat. Labelling food with paper labels on the storage container, marking the date that the container is placed in storage, can make this practise simpler. The best way to rotate food storage is to prepare meals with stored food on a daily basis.