Why can this instant charging effect be achieved? Don't underestimate such a small biscuit, it still contains a little "wisdom".
First, convenient dry food.
As we all know, the battlefield is different from usual. At that critical moment, the enemy's artillery fire will come at any time, and it is possible to start a war at any time, or it is always on standby as required, so it is difficult to have time for a good meal. Don't say a good meal, because the environment and occasions on the battlefield are different from normal life and work, and even lack of food and drink. In this case, in order to solve the energy supply problem of soldiers in difficult and dangerous environment, compressed biscuits were born. Its birth can make it easier for people to "charge". Tear open the packaging bag, eat one or two tablets and drink a few mouthfuls of water, and you can solve a meal.
Moreover, there is only a small piece of compressed biscuits, which is very convenient to carry on the road and does not occupy any space. It is simply an "energy remedy food" for soldiers when they have no food to eat. Although compressed biscuits taste ordinary, they are tired of eating two more. Usually there is no desire to buy in the supermarket, but it is not a snack in itself, and it belongs to a kind of military dry food. So, why are small military compressed biscuits so hungry?
Second, just military? There is a story!
"Military compressed biscuits" are special biscuits specially made for soldiers. A small piece can sweep away hunger and replenish energy in time. How is this compressed biscuit made? Such a small piece contains so much energy! In fact, its production process is not complicated, even made of simple biscuits. At first, it didn't appear on purpose, but was discovered by accident. This matter needs to start with an Englishman. At that time, an English sailboat was sailing at sea, and as a result, it encountered a strong wind, which caused the sailboat to lose its direction, drift around the sea and then hit a rock.
The ship broke down and flooded, so the crew had to abandon the big ship and live on the island with food in a small boat. The material living on an isolated island is limited. In order to meet the most basic physical quality, everyone tries to make food. Among them, they made a food called Biscay (named after the island), which was mixed with flour, cream and sugar, kneaded into a small dough and then baked. The food kept them going until the rescue team arrived. Yes, this food is the predecessor of compressed biscuits.
Third, the energy "secret" of compressed biscuits
It seems that the production of compressed biscuits is really simple, but why can it give people so much energy? People will feel full after eating it. In fact, it only takes 30 minutes to cook in water to understand. You can do an experiment like this. You can put the compressed biscuits in "cold water" first. At this time, you will find that it has not changed. Then hot water was added, and the compressed biscuit changed, but the change was not obvious, and it was still a complete compressed biscuit.
At this time, if you directly boil it in water for 30 minutes, great changes will take place in this process, and it will slowly melt and change from solid to paste. If heating is continued at this time, it can even expand to fill the whole pot. Is this a problem of swelling after heating, but our stomachs are not that high? In fact, this process is like the digestion process in the human stomach. When compressed biscuits are digested in the stomach, they will expand continuously, thus making people feel full. But then again, if you can eat at ordinary times, it is better to eat less of this fast food.