How does Brian store his food in hatchet?

In Gary Paulsen's novel "Hatchet," Brian Robeson stores his food by using a makeshift refrigerator method. He digs a hole in the ground and places his food inside, covering it with leaves and dirt to keep it cool and preserve it from wildlife. Additionally, he keeps some food in a tightly sealed container to protect it from animals and the elements. This method helps him manage his limited resources effectively while surviving in the wilderness.