This kind of canned food itself is sterilized at high temperature. As long as the food inside is kept in such a sealed environment and not exposed to the air, it can naturally be kept fresh for a very long time. Even now, it looks edible.

As early as World War II, how to make food easy to carry and keep for a long time, so that those soldiers can eat their stomachs? The Japanese army really put a lot of thought into it and made cans.

Looking back at the photos of the World War II history exhibition, we can see that there were still many cans left unfinished.

At that time, canned food was developed to prevent these soldiers who were going to the battlefield from eating these cans and causing physical discomfort, thus affecting their combat level. Finally, even if it is left for a long time, soldiers can safely eat food.

It not only ensured the safety of canned food, but also began to develop the diversity of food.

Imagine how happy it is to eat canned beef in wartime. Solving the problem of food and clothing is a serious problem faced by most people in the war years, and soldiers can eat such food, and their ability to March and fight is naturally guaranteed.

Although long-term storage will inevitably affect its taste, it is not easy for canned food with production date earlier than 1944 to still look bright. It is said to be red bean rice, but the taste is not flattering. The netizen shouted, this is how many preservatives should be put in order to save it until now.

Nowadays, canned food is very popular because of its convenience. Whether it is canned food during World War II, it has continued to this day, and with the continuous improvement of technical support, canned food can not only be preserved for a long time, but also lose its nutritional value.