Since the manufacture of black powder requires a large amount of saltpeter as a material, there is no shortage of saltpeter.

As soon as Yang Ling gave the order, Guo Zhao arranged for the people in the mansion to start making a large number of ice cubes.

However, after half a day's work, there were a lot of ice cubes in the house.

When the next man placed the ice in the corner of the room, the temperature soon dropped.

Enjoying the rare coolness of the scorching summer, the women were happy at the same time, but they also admired Yang Ling more and more.

His husband is really the smartest person in the world, and he can make ice cubes in broad daylight.

Yang Ling looked at the ice cubes in the corner of the room, and suddenly had an idea in his heart.

"Zhen'er, you said that if we sell ice, can we make money?"

Although with the business of Moutai and perfume, Yang Ling has made a lot of money.

But no one has too much money.

Mi Zhen groaned slightly, and then nodded affirmatively,

"Definitely make money!"

As mentioned earlier, in the world, basically only the royal family, and powerful ministers like Cao Cao and Liu Biao, had the ability to hide ice in winter.

Most officials were only able to use ice cubes to cool off in the summer, when the emperor rewarded them with ice.

Not to mention ordinary people, they simply don't have the qualifications and ability to use ice in summer.

It's a hot day, and if you make a lot of ice cubes and sell them, you can definitely make a lot of money!

"Okay, you go back and tell the two brothers about the ice-making method!"

Yang Ling commanded.

After moving the entire family to Xudu, with the relationship with Yang Ling, the Mi family developed smoothly.

Mi Zhu and Mi Fang are in the court, and they also have a lot of money and few official positions.

It is through them that the ice making business can be started.

"Okay, the concubine will send someone to inform them immediately."

Mi Zhen should come down in one bite.

After knocking on the business of customizing ice, Yang Ling leaned comfortably on the bed, but there was some regret in his heart.

It's a pity that the snowflakes he brought from the afterlife have already been drunk.

Otherwise, wouldn't it be nice to have a cold can of beer at this moment?

Not really, but also a cold drink.

At this moment, Yang Ling is extremely nostalgic for the ice cream cold drink of later generations.

Yes, you can make your own drinks.

If you can't make Coke Sprite or the like, can't you make simple sour plum soup?

Thinking of this, he jumped up in the surprised eyes of the women.

"Why is the husband so excited?"

Cao Qing said suspiciously.

"Hehe, the ladies are waiting here for the time being, and they will come when they go for the husband!"

Yang Ling put down this sentence, took Guo Zhao out of the room, and went straight to the room.

"Husband, what are you going to do?"

Watching Yang Ling rummaging in the kitchen, Guo Zhao said with some curiosity.

"It's so hot, I'm going to make some drinks for the ladies."

After Yang Ling prepared the various ingredients, he set up a large cauldron.

In a few moments, the water in the pot was boiling.

Yang Ling poured various ingredients such as black plum, tangerine peel, and dried hawthorn slices into the pot one by one.

Although there was no rock sugar in the world, fortunately, there was stone honey made from sugarcane juice.

After Yang Ling added stone honey again, it turned to low heat and simmered.

After estimating that the time was about the same, Yang Ling instructed Guo Zhao to find gauze and filter out the dregs inside.

In this way, the authentic and excellent sour plum soup is complete!

Yang Ling couldn't wait to pour himself a glass, and then added some ice cubes to it.

One bite down, sweet and sour, the whole body heat from the inside to the outside, instantly disappears!

"Cool!"

He couldn't help but scream excitedly!

Although there is still a big gap between this sour plum soup and the drinks of later generations.

But fortunately, it is clean and hygienic, and it is a rare drink in the world.

"Husband, is it really so delicious?"

Seeing Yang Ling so comfortable, Guo Zhao couldn't help but be interested.

"You can taste it!"

Yang Ling poured a cup with a smile and handed it to her.

Guo Zhao took a sip cautiously.

It doesn't matter if you don't drink it, a drink directly makes her beautiful eyes stare at the boss.

"This ...... It's so delicious, isn't it? ”

"Hehe, that's not it, you don't look at who did it."

Yang Ling laughed,

"Alright, let's take these over and let them taste them."

"Yes, husband."

Guo Zhao poured all the remaining sour plum soup in the pot into the wooden barrel.

When the two returned to the room, the women were already waiting.

Seeing Yang Ling coming back, they chattered and asked.

"Husband, what the hell are you doing?"

"What's in this bucket and why does it smell so good?"

Guo Zhao on the side pursed his lips and smiled,

"Sisters, don't worry, the sour plum soup in the bucket is a summer drink made by the husband for the sisters."

As she spoke, she placed the wooden bucket on the table, spooned out the sour plum soup inside, added ice cubes one by one, and handed it to the other sisters.

When the sour plum soup was in the stomach, whether it was Cao Qing, or Huang Yueying, Mi Zhen and other women, their reactions were exactly the same as Guo Zhao.

First shocked, followed by a look of satisfaction!

"It's so delicious!"

"It's cold, it's sweet and refreshing!"

You know, there aren't even many snacks, let alone drinks.

The sweet and sour taste of sour plum sugar, coupled with the coolness of ice cubes, instantly conquered the hearts of many women in Yangling!

After they finished drinking a bowl, they were still not satisfied, and they asked for a refill!

Seeing that a bucket of sour plum soup was not enough for Cao Qing, Mi Zhen and other women to drink, Yang Ling hurriedly ordered Guo Zhao to let his subordinates continue to boil.

Mi Zhen tasted the sour plum soup carefully, and suddenly smiled,

"Husband, this sour plum soup is not a bad business, you can let the two brothers of the concubine give it a try."

"If the two brothers are interested, I'll write it down when I go back."

Yang Ling smiled indifferently.

Sour plum soup is best drunk in summer, and it is not as lucrative as Moutai, perfume, and ice cubes.

Therefore, Yang Ling did not put it in his eyes.

"Speaking of which, we haven't been back for a while. Husband, why don't we take the sour plum soup tomorrow and go back to visit my father. ”

Cao Qing proposed.

Recently, Yang Ling has been idle at home and has not paid attention to the world's major events.

Just take this opportunity to meet Boss Cao and see if there is any movement in Yuan Tan, Yuan Shang, as well as Liu Biao, Liu Bei, Sun Quan and others.

So he nodded,

"Okay, then let's go back tomorrow."

……

The next day, Yang Ling left the mansion with Cao Qing and Guo Zhao and went straight to the Prime Minister's Mansion.

Cao Cao was not in the mansion, and his wife, Mrs. Ding, who raised Cao Ang and Cao Qing, met with Yang Ling and the others.

"I've seen my mother-in-law (mother)!"

Yang Ling and Cao Qing saluted Mrs. Ding.

"It's been hot these days, why are you two coming back?"

Although Mrs. Ding was disgusted, she took Cao Qing's hand, and her eyes were full of love.