1. hazelnut kernels should be stored in a sealed and dry container. In addition, hazelnuts should also be kept away from sunlight. If they are found to have insect eyes or deterioration, they should be picked out immediately to avoid polluting other hazelnuts.

2. Preserving dried fruits safely is to put them in a closed container. Compared with plastic bottles, glass bottles are better. The properties of glass are stable, and harmful substances will not be volatilized. The dried fruits should be put into the glass bottles after they are clean.

3. Hazelnut is rich in nutrition. In addition to protein, fat and sugar, the contents of carotene, vitamin B1, vitamin B2 and vitamin E are also very rich. Hazelnut contains 8 kinds of amino acids needed by human body, and its content is far higher than that of walnut. The contents of various trace elements such as calcium, phosphorus and iron in hazelnut are also higher than those in other nuts.