The cost of food on the aircraft carrier is normal. It's not that American soldiers eat big fish and meat every day on the boat, so the expenses are too high. But because on an aircraft carrier, there will be five or six thousand people under normal circumstances. The diet and daily life of these five or six thousand people is a huge number every day, with 365 days a year. Under normal circumstances, a cruise at sea takes about six months to three months. During this period, the grain on the aircraft carrier was disposable and completely reserved, which should be a considerable number, which is why many countries in the world can't afford to raise aircraft carriers.

On the aircraft carrier, what soldiers want most is not big fish and meat, but vegetables. Every time I go out to sea for about half a year, it is even more difficult or even impossible to eat fresh vegetables. What soldiers eat most on aircraft carriers is canned food. Maybe we think canned food is delicious, but staying on the aircraft carrier for several months and canning every day will inevitably make the soldiers sick. For this reason, scientists have invented many things, such as pumping vegetables, which can be preserved for a long time, but the cost is quite high.