After so many years, in addition to the first twenty elements in the periodic table, Xu Yi in the back has long been unable to memorize it, and he can understand it simply, but he still has to calculate the molecular weight according to the molecular structure, and it is still very necessary to find some information.

Similar to the simple reaction of quicklime and water to turn into calcium hydroxide, Xu Yi naturally knows. After searching on the Internet, he took a piece of paper to write down the molecular formula and molecular weight of calcium hydroxide, and then found the molecular weight of calcium pentahydrate, and then calculated the percentage content of calcium in the pure state of each of the two, and then converted each gram of quicklime to how many grams of calcium lactate according to this result.

After calculating, Xu Yi looked up the solubility of calcium hydroxide and calcium lactate in water on the Internet.

As a result, he found that the solubility of calcium hydroxide decreases almost in a straight line with the increase of temperature, while the solubility of calcium lactate is the opposite, which increases with the temperature of the solution. Moreover, even at low temperatures, the concentration of calcium ions in the calcium lactate saturated solution far exceeds the concentration of calcium ions in the calcium hydroxide solution.

Finding such a result, the rest of the qiē becomes very simple: in this way, as long as you consider what is the concentration of calcium ions in this calcium hydroxide at room temperature, you only need to calculate the amount of calcium lactate needed according to this.

Of course, the temperature does not change much at room temperature, and the temperature in your own space has been fixed at 24 degrees, so you can also calculate a ratio according to this.

Xu Yi found out the concentration of calcium hydroxide at this temperature, and then converted it to the concentration of calcium lactate required for the same concentration of calcium ions, and converted it proportionally. The national standard of calcium lactate in food processing was inquired.

Eventually, he found out. The amount of calcium lactate added by oneself is far less than the standard upper limit of calcium lactate allowed to be added in gel foods such as jelly. I put my mind down and entered the space, ready to start working on it.

The most basic real yàn is naturally to do it in strict accordance with the formula ratio given to him by Yan Peimin. After Xu Yi took the measuring cup and the balance to calculate, he put on his gloves and began to make zuò ice powder.

However, after more than half an hour of refrigeration, Xu Yi found that the results of this test could not only be said to be unsatisfactory, but also a complete failure - the ice powder in the measuring cup did condense, but there were only irregular pieces of irregular shape in the quilt, and there were still pectin deposits around these curts, which made the solution very viscous.

Look at such a structure. Xu Yi fell into deep thought, this condensation is not complete, there is no doubt that calcium lactate has been added less.

I did it according to the amount given by Yan Peimin, and it is conceivable that this ratio of calcium lactate is less, which is obviously proving that my water consumption is also a little less, and the dosage of the two should almost increase simultaneously.

Xu Yi cheered up and prepared to continue to practice, anyway, he was originally just to choose the best combination of these ingredients.

For several hours, Xu Yi constantly adjusted the amount of water and calcium lactate.

Increasing calcium lactate can finally make the ice powder completely coagulate. However, the condensed ice powder always feels a little too hard in the mouth. It's even a bit like jelly, missing the feeling of tenderness. Of course, fortunately, this calcium lactate has no taste. This is also fortunate that the protein content of the tofu has been measured by itself, if you order tofu and try it like this thing, I am afraid that this tofu will not only be too hard, but I am afraid that it will be more bitter than Coptis chinensis.

If you add water alone, this ice powder will not solidify at all, and it is not as good as at least condensing when there is less water before, which is also like adding less brine when ordering tofu.

……

After trying again and again, Xu Yi felt more and more that there were too many commonalities between this and brine tofu. After repeated attempts of ten or twenty times, Xu Yi yawned and stood up. For such a long time, he hadn't eaten at all, and he was full of just drinking this ice powder, and he reached out to pat his slightly swollen stomach, Xu Yi felt that there was a sound of water in his stomach. A small cup is only more than 100 milliliters of ice powder, which is not much, but it is not comfortable to replace it with dozens of cups in a row.

In particular, I was afraid that other ingredients would affect the taste, so I didn't add anything to it. As a result, the ice powder has no taste except for the faint sweetness brought out by a small amount of sugar in the pectin itself - it is simply bland and tasteless.

Of course, Xu Yi didn't eat so much ice powder for nothing, and finally after the real thing, he finally found out the final ratio of this thing, the water was 30% more than the earliest use, and the amount of calcium lactate was almost 40% more than the initial test.

The ice powder coagulation effect made under this ratio is the best, and the soft and hard process is just right. Xu Yi repeated this ratio several times, and after determining the stability of this ratio, he even directly took a large bucket and weighed enough raw materials to prepare it according to this ratio, and the result was also perfect!

Even in order to eliminate the interference in the space, Xu Yi also took all this thing out of the space and tried to do it outside, and the result was completely the same - Xu Yi was satisfied with the transcription on paper and finalized the final configuration plan. Of course, how many raw materials need to be used for each batch of zuò, you have to wait until you buy the fractional plate back, and then determine the proportion and amount of each batch according to the capacity of this thing.

The most fundamental thing is done, and the only thing that is lacking in the commercialization of ice powder is the amount of mint, melon fruit, and sugar, as well as the combination of flavor. Of course, this will inevitably involve more practice, but since you are ready to take the retro route, in some varieties, this white sugar naturally has to be replaced with brown sugar.

Xu Yi also thought of a few questions, his own melon is understandable, but this watermelon himself really can't use this watermelon anymore, after all, there are too many seeds in this thing, it is too troublesome to deal with, it doesn't matter if you eat it yourself, but if you sell it as a commodity, you still have to reduce the trouble of this processing process as much as possible, you still have to find a place to buy some seedless watermelon to plant, and then look up the planting and cultivation technology of this thing on the Internet. I don't know if this thing will be any different from ordinary watermelon.

The other thing is that there are too few types of fruit. I should have gotten some more fruit. If you only rely on melons and watermelons to play the whole game. Then I'm afraid that this is the difference between picking up a burden and selling ice powder on the roadside, and it is estimated that it will be such a difference between melons and dates.

However, Xu Yi definitely didn't think about buying fruits, one of them was naturally because the quality could not be better and safer than the one in the space. One of the more important reasons is that I have to spend extra money to buy it, which is obviously not cost-effective. In this year, the fruit pieces picked from the tree cost eight cents a pound, and when the middleman packaged it, it changed hands at the price of a few tens of dollars a pound.

If you go to buy fruit by yourself, you can't buy it for a pound or two, and it's obviously not a few or dozens of dollars that can be easily done when you take it in a box. If the business is too bad, maybe the fruit is rotten and the ice powder is not sold. It's definitely a loss-making deal.

Xu Yi still wants to buy some fruit trees to plant in the space, the price of buying a few trees is definitely more cost-effective than buying a box of fruits, even if he can't sell them, at least he still has some fruit trees left, it's really not possible to develop a fruit dumpling to try it in the future!

However, Xu Yi couldn't figure out the specific fruit tree varieties, so he could only wait until he went to the market to see them before making a decision.

Or vegetables like tomatoes or cucumbers, which are popular in the summer, can also be a good choice - of course, if they can be used, they will definitely be cherry tomatoes and fruit cucumbers, and they will definitely not be sold for cooking.

Choosing to choose, this does not prevent Xu Yi from temporarily holding tomatoes to try, anyway, in the end, he either had his own stomach or had to enter the stomachs of a few people in the bedroom. I think no one should care about this problem except Liu Liping.

Xu Yi took out the tomato seeds left behind, and prepared to hook out two ridges of land to plant a little bit to try. Anyway, even if it can't be used or is not delicious, you can use it for stir-fry or eat it raw, and the tomato in the space must taste no worse than that cherry tomato.

Tomatoes have to be planted in a vegetable garden, let alone in this space. Xu Yi was a little worried, for fear that this thing would grow tall when it was watered, and it would immediately fall to the ground because of its own weight.

For the sake of insurance, Xu Yi simply planted a seed in the soil first, and directly inserted a bamboo pole next to it in case of emergency, and then watered the seed!

Sure enough, after watching the tomato seedlings emerge, it grew more than a meter tall in one breath, and it continued to grow upward, and countless branches and flower spikes grew between the leaf axils, blooming with small light yellow flowers.

Seeing this situation, Xu Yi quickly stretched out a hand to hold the tomato stem to prevent it from lodging. However, seeing that this thing was about to grow taller than himself, and he didn't want to stop, Xu Yi hurriedly reached out to the top and directly plucked the heart on it to curb its continued growth, and then dealt with the side branches that grew too long, and the tomato completely stopped growing, but the branches continued to thicken and stopped.

Looking at the fingertips dyed pale green by the tomato juice, there was still a faint smell on it, Xu Yi couldn't help but shake his head, the children in the city or don't know that this tomato seedling stinks, I'm afraid that they don't even know what this thing looks like, and they will think that this tomato plant is as sweet and sour as a tomato.

Seeing that nothing was going on for a while, Xu Yi let go of his hand and returned to the tent, found a torn sheet and tore it into strips of cloth to tie the tomato to the bamboo pole.

Xu Yi also figured it out, he didn't have to think about planting so much of this thing, at least in the experimental stage, planting so many trees by himself was definitely enough for himself to eat. Even if all of these are ripe and picked, you can replant them yourself.

Xu Yi had just calculated the distance and was about to plant a few more tomatoes, when he watched the tomatoes tied to the bamboo poles shake like a pendulum, rubbing against the bamboo poles and making a slight rustling sound - it was clear that tomatoes were also wind-borne flowers, and the space was helping them to complete their pollination work in its special way.

Xu Yi planted a few tomatoes and fixed them all, and couldn't help but hope for it.

These tomatoes grow so tall and bloom so many flowers, what a spectacle it must be when the fruit is ripe. (To be continued......)