Answer:
The purpose of charcoal in a charcoal cooler is to absorb moisture and odors, which helps to keep the contents of the cooler fresh for a longer period of time.
Step-by-step explanation:
Charcoal has a naturally porous structure that allows it to adsorb moisture and trap odors. When placed in a cooler, the charcoal absorbs excess moisture in the air, which helps to keep the contents of the cooler dry. This is important because moisture can promote the growth of bacteria and mold, which can cause food to spoil more quickly.
In addition, the charcoal also helps to trap and absorb odors. This is particularly useful when storing foods with strong smells, such as fish or cheese, as it can prevent the odors from permeating other foods in the cooler.
Overall, the use of charcoal in a charcoal cooler helps to maintain a dry and odor-free environment, which can help to prolong the freshness of the contents of the cooler.