| 摘要 |
<p>PURPOSE:To enable the long-term preservation of green vegetables, etc., by wrapping the food to be packaged, e.g. green vegetables, etc. with flexible, water-absorbing and hydrated packaging material, and refrigerating the packaged food at a temperature below 0 deg.C and above the freezing point of the packaged food. CONSTITUTION:The food to be packaged 2 (e.g. vegetables, fruits, etc.) is wrapped with a flexible, water-absorbing and hydrated packaging material 1 (e.g. wet old newspaper), and refrigerated at a temperature below 0 deg.C and above the freezing point of the food 2 (e.g. 0 deg.C--0.9 deg.C). The food is covered with the ice layer 3 made of frozen water in the packaging material 2. Accordingly, the food can be refrigerated without causing freezing, the formed ice layer 3 protects the food from the brief and slight fluctuation of the temperature of the storage chamber, and the food can be stored for a long period at low cost.</p> |
