Avoiding food spoilage is very important for our health. Choosing the right food jar is an important step in ensuring long shelf life and good food quality. When choosing a food jar, we need to consider the following factors: the material of the jar, the sealing performance, the appearance and quality of the jar.

First, the material of the food can determines its effect on the food. Generally speaking, stainless steel, glass and food-grade plastic are the more common food jar materials. Stainless steel is a strong and durable material, and does not produce any chemical reaction on food. Glass is a transparent and easy to clean material, it does not affect the taste and quality of food. However, due to the fragile nature of glass, the use of glass jars needs to be careful. The use of food-grade plastics is becoming more and more common, but we need to ensure that we choose food-grade plastics without harmful substances, so as to ensure the safety of food.

Secondly, the sealing performance of food cans is also very important. A good food jar should have good sealing performance, prevent air, moisture and bacteria from entering the jar, and maintain the freshness of the food. A poorly sealed food can easily expose food to the air, resulting in food spoilage and loss of nutrients. When buying food cans, we can ask the merchant about the sealing performance of the jar, or directly test the sealing performance of the jar. Generally speaking, food cans with good sealing performance will have a removable rubber ring, when we tighten the lid of the can, the rubber ring can be tightly wrapped around the mouth of the can to achieve a good sealing effect.

In addition, the appearance and quality of the cans are also factors that need to be considered when choosing food cans. The appearance of the can should be free of obvious breakage, cracks and scratches, which can cause the sealing performance of the food can to deteriorate. We should check the wall thickness and strength of the tank to ensure that the quality of the tank is up to standard. Thick-walled jars will last longer, while better-made jars will protect the food better.

In addition to choosing the right food jar, there are steps we can take to avoid food spoilage. First of all, we should make sure that the food is dry before we put it in the jar. Moisture is one of the main causes of food spoilage, so it is very important to keep food dry. Secondly, when putting food into the pot, we should try to reduce the presence of air. The air in the tank can be pumped out, or a layer of plastic wrap can be covered on the surface of the food in the tank to reduce oxygen exposure.