Doomsday Bunker Upgrade

　　 has added fresh water and expanded the volume of the water tank. For Chen Xin, this can be described as sending charcoal in the snow, which relieved his urgent need.

　　 With a water pump that can pump groundwater, Chen Xin obviously doesn't need to use water tightly as before.

Although there are three tons of fresh water and a water circulation system that can purify sewage and recover water vapor in the air, the refuge is not a space station in space. It cannot be completely sealed, and the efficiency of the water cycle is naturally not 100%. In fact, Achieving a water cycle efficiency of 90% is already a remarkable efficiency.

But even so, with a loss of 10% in one cycle, three tons of water will not last long. According to the statistics of urban residents in Yan Country, under normal circumstances, a person will consume 130-300 liters of water a day, which is almost a month on average. That is 4 to 10 tons of water.

　　 And this has not yet calculated the water consumption of the planting greenhouse.

　　 Including the evaporation of water vapor from the ventilation ducts and the water consumption of the planting greenhouse, Chen Xin was able to persist for a month before the water shortage problem occurred. It is really that he has saved water very much.

But now with a water pump and a large water tank that can hold eight tons of water, Chen Xin can more or less loosen the water. You don’t need to live like a space station astronaut like before. Washing his face every day is to wipe it with a wet towel and take a bath. You can only rub soap after you get wet, and you have to turn off the faucet when you rinse it off.

　　 Being able to relax some water restrictions, this is really a great improvement in living conditions for Chen Xin.

　　 He believes that when the survival point is settled tonight, he can at least increase his daily income by at least 1 point.

　　 The water tank was filled, and Chen Xin turned off the pump before returning to the planting greenhouse to continue watering, re-watering the previously unfinished land.

　　 If an acre of land is used to grow vegetables, it is really just a small vegetable garden, there is not much space, but in fact 100 square meters is not small at all.

　　 If you put it in a place like Beijing, Shanghai, Guangzhou, and a 100-square-meter house, it won’t be able to get down without one or two million. Do you still think this one hundred square meters is small?

　　 And 100 square meters of dry rice may only be enough for Chen Xin to eat alone, but if you grow cabbage and lettuce, vegetables that can be harvested in one month, the yield is considerable.

　　 At least after Chen Xin had harvested the ripe lettuce and cabbage in the ground, he found that there was a pile on the ground, making Chen Xin feel that he could not finish it.

　　 How many of these vegetables are there, Chen Xin doesn't have a scale, so it's obviously impossible to count.

　　 But there are at least one or two hundred vegetables, and I haven't counted the number of vegetables reserved for planting, and the carrots grown on the other half of the land.

　　According to the calculation of eating one vegetable a day, these vegetables are old enough to eat for more than half a year.

　　 Even if the cabbage is storage-stable and Chen Xin eats cabbage every day, he doesn't think he can finish the cabbage in half a year, not to mention the same amount of lettuce next to him.

　　 So I left a portion that I can eat, and Chen Xin intends to exchange the supplies.

　　 And this was Chen Xin's original plan. No matter what the external situation is, Chen Xin needs to go out to see and understand what the world has become under the impact of the meteorite.

　　After packing the harvested vegetables in the large plastic boxes they found, Chen Xin thought about what to do with these vegetables.

These boxes are the storage boxes I bought before. They were originally used to put things in the shelter, but after really entering the shelter, Chen Xin found that there was nothing to be packed in boxes, and these storage boxes were kept on hold. In the storage room, it came in handy now.

　　 In the process of packing these lettuce and cabbage, Chen Xin also roughly estimated how many vegetables there are.

There are about 80 pieces of cabbage, each packed in two plastic boxes, which seems to be at least three to four hundred kilograms. Although the output of lettuce on the side is not as exaggerated as cabbage, it is also filled with one and a half plastic boxes, about two. It looks like a hundred kilos.

Chen Xin’s cabbage is an early-maturing variety. Because the plant is grown in a greenhouse, although it has only been planted for one month, it grows very full. According to Chen Xin’s estimation, one single is enough for him to eat for three to five days. .

　　Fortunately, cabbage itself is a storage-resistant vegetable. As long as it is stored properly in a low temperature environment, it can be stored for three or four months without damage.

　　 So Chen Xin left a box of cabbage and half a box of lettuce in his storage room, while the remaining two boxes of vegetables were moved to the garage, ready to be exchanged for supplies.

　　 Just when he moved the cabbage and lettuce to the storage room, Chen Xin looked at his storage room and scratched his head, thinking that he should include the upgrade of the storage room in the upgrade plan.

　　 When the storage room was repaired, because all bottled water and self-heating food in bags were stored, there was no need for low-temperature storage to keep fresh, so Chen Xin didn't use these functions, let alone prepare a refrigerator in the refuge.

　　 But now that these fresh vegetables are harvested, Chen Xin has to consider the storage of vegetables.

　　 The problem with cabbage is not big, and the temperature in the storage room is not high. UU reading www. uukanshu. Com should be able to store for a long time, but lettuce may wilt after a few days.

　　 Therefore, creating a freezer or refrigerator that can store at least one or two hundred catties of vegetables is something Chen Xin needs to worry about now.

　　 Some people may ask, doesn’t it mean that the outside temperature will drop to tens of degrees below zero? Worried about vegetable spoilage at such a low temperature? Shouldn’t you worry that you won’t be able to bite if it freezes?

　　 is indeed saying that, but the problem is that the temperature has not fallen so low yet!

　　 Moreover, Chen Xin’s storage room is in the refuge, which is located under the 100-meter-thick soil layer above the head like the refuge. It is impossible to be like the outside world by tens of degrees below zero! If that were the case, Chen Xin would have long since frozen.

　　The soil layer has the function of heat preservation, and although the underground geothermal heat is not obvious on the surface, in fact, the heat is continuously transmitted from the mantle to the surface.

　　 In fact, scientists have calculated that for every kilometer of underground depth, the temperature will rise by 25 degrees. On average, for every 100 meters of formation depth, the temperature will rise by three degrees.

　　 So now Chen Xin’s refuge is not so cold. The temperature in the container house is still more than 20 degrees. You may not be able to wear a single coat, but a coat is almost the same.

Of course, this temperature can’t be considered hot. These vegetables will not deteriorate quickly when stored in the storage room, but even if the temperature in the storage room is not high, it is still more than ten degrees Celsius. If Chen Xin wants to harvest these Keep fresh vegetables and eat slowly, so it is necessary to prepare a refrigerator or freezer.

　　 Fortunately, it is now the end of the world. If you want to change a refrigerator or freezer with these fresh vegetables, it should be no problem. Maybe you can change a lot of other supplies.

　　 Thinking of this, Chen Xin began to prepare for going out.