The refreshing coffee in the game is actually espresso according to English literal translation. Coffee concentration is generally used to measure the taste and alcohol content of coffee, which is positively related to the roasting degree of coffee beans and the ratio of powder to water. The most important thing is to see the extraction method. However, the caffeine content of espresso is not necessarily high.
Other delicacies in world of tanks.
The tradition of making rice balls as rations continued until modern Lu Haijun after the Meiji Restoration. The army stipulates that one grain of rice and one grain of wheat should be made into a spherical rice ball and distributed according to the standard of two meals. The navy uses it as a combat meal, three times a meal.
Because rice balls contain a lot of water, they are easy to rot and deteriorate in the hot and humid environment in tropical areas, but they will be frozen and difficult to swallow in cold areas, so the army later developed standard rations such as dry bread and biscuits as substitutes. Of course, the navy does not have this problem.