The service life of food packaging boxes is limited. Food packaging boxes undergo a series of treatments during the production process, such as printing, coating, baking, etc. These treatments gradually release chemical substances from the packaging boxes, which may undergo chemical reactions after contact with food, affecting the quality and safety of the food.

食品包裝盒通常會在底部或側面標注使用壽命。這個使用壽命一般是指包裝盒在正常條件下的保質期限，超過這個時間后，包裝材料可能會發生變化，對食品的保存產生負面影響。例如，一些易氧化的食品，如果包裝盒材料中存在過多的氧氣，可能會使食品變質。

Food packaging boxes usually have their lifespan marked on the bottom or side. This service life generally refers to the shelf life of the packaging box under normal conditions, beyond which the packaging materials may change and have a negative impact on the preservation of food. For example, some easily oxidized foods may spoil if there is too much oxygen in the packaging box material.

食品包裝盒在使用過程中會受到外界環境的影響，如濕度、溫度、光照等。濕度較大的環境可能會導致包裝盒吸濕變形，產生漏食現象，使食品無法有效地保持原有的品質。溫度過高或過低也會使包裝盒材料出現變化，影響食品的有效密封性和保鮮效果。光照會導致包裝盒材料老化，降低其物理性能。

Food packaging boxes are subject to external environmental factors such as humidity, temperature, and light during use. An environment with high humidity may cause moisture absorption and deformation of the packaging box, resulting in food leakage, making it difficult for the food to effectively maintain its original quality. High or low temperatures can also cause changes in the packaging material, affecting the effective sealing and preservation of food. Light exposure can cause aging of packaging box materials and reduce their physical properties.

包裝盒的使用壽命還與食品的性質有關。一些特別敏感的食品，如易變質、易產生變色、異味或產生化學反應的食品，對包裝材料的要求更為嚴格。這些食品可能會要求使用特殊的包裝盒，或需要在特定的溫度和濕度條件下進行包裝和儲存。

The service life of packaging boxes is also related to the nature of the food. Some particularly sensitive foods, such as those that are prone to spoilage, discoloration, odor, or chemical reactions, have stricter requirements for packaging materials. These foods may require the use of special packaging boxes or require packaging and storage under specific temperature and humidity conditions.

為了延長食品包裝盒的使用壽命，需要合理保管和使用。首先，包裝盒應存放在干燥、通風、無異味的環境中，避免受到陽光直射或潮濕的影響。其次，使用包裝盒時應注意避免與刀具、尖銳物品等硬物發生摩擦和碰撞，以免損壞包裝盒導致食品受到污染。此外，包裝盒應按照規定的方法進行密封，避免食品暴露在空氣中。

In order to extend the service life of food packaging boxes, it is necessary to properly store and use them. Firstly, packaging boxes should be stored in a dry, ventilated, and odorless environment to avoid direct sunlight or humidity. Secondly, when using packaging boxes, attention should be paid to avoiding friction and collision with hard objects such as knives and sharp objects, in order to avoid damaging the packaging box and causing food contamination. In addition, the packaging box should be sealed according to the prescribed method to avoid food exposure to the air.

總之，食品包裝盒的使用壽命是有限制的，這取決于包裝盒材料的質量、加工工藝和環境條件等因素。為了保證食品的質量和安全性，我們應該合理選擇、儲存和使用食品包裝盒，以避免因包裝盒問題而影響食品的品質和安全。

In short, the service life of food packaging boxes is limited, which depends on factors such as the quality of packaging box materials, processing technology, and environmental conditions. In order to ensure the quality and safety of food, we should reasonably select, store, and use food packaging boxes to avoid affecting the quality and safety of food due to packaging box issues.