Because they knew that they were going to take the ancient Shang Yu Road, and knew that the barbaric scout camp soldiers here naturally stayed on the side of the ancient Qin Road for half an hour, harvesting some wild grasses that had just emerged as forage.

"I guess I won't be able to return to Wuguan tonight!" One of the scout soldiers looked around, and the scout camp soldiers dismounted their horses one after another, preparing to open a temporary camp on the spot.

Although the scout battalion soldiers restrained their horses and prevented them from licking the ground, they still couldn't stop their natural instinct to lick the ground.

Some people know the old story of the Hanshui Zhuji attacking the Lynx tribe from this ancient road to the west a hundred years ago, and it is no wonder why those Hanshui Zhuji lost their military strength and returned in vain.

Not long after, everyone was stationed here, it was for the "salt refining" of Han Yan's army, the scout camp was very cautious, although Shen Tu ambush led the troops to drive Rong Di out of the land of Shangyu, but there may still be some remnants of Rong Di hidden around, it is precisely because of this that Huang Lie also arranged some people to be on guard.

"General Huang, do you see if these are the salt you are looking for?"

A soldier opened it with a wrapped linen cloth and asked Huang Lie.

Huang Lie looked at the salt wrapped in the sackcloth and asked, "Where did you find it?" ”

The pawn replied: "There is a lake less than three miles away from here, it is estimated that the water level has dropped in winter, and there are a lot of this yellow-brown salt between the cracks in the stones on the shore, but unfortunately, these salts are poisonous, otherwise Wuguan is so short of salt!" ”

Huang Lie nodded and said, "I don't know if this poisonous salt can enter the eyes of the Korean army, so take it over now and take a look." ”

Huang Lie was holding a linen cloth in his hand and wrapped it in front of Lin Yuyan, and found that in front of the latter, there was already a fire, and he didn't know what he was cooking.

"Join the army!" Huang Lie saluted, and when Lin Yuyan came back to his senses, Huang Lie continued: "The soldiers of the scout battalion found some poisonous salt in the salt lake not far away, and I don't know if it was what the army wanted. ”

Huang Lie handed the linen cloth wrap to Lin Yuyan, and as soon as he opened it, he saw that Lin Yuyan's tense face slowly eased: "It saves the trouble of extracting salt from the soil!" ”

Lin Yuyan made people raise a bunch of flames again, set up a cauldron, and asked people to bring some water and put it in the cauldron to boil.

Lin Yuyan glanced at the "poisonous salt" in the sackcloth, except for the yellow-brown color, the particles and shape were not much different from the salt that was passed in Daqin, Lin Yuyan saw that the water in the cauldron was already boiling, so he asked Jing Yi beside him to put the salt in the sackcloth wrap.

Then stir constantly......

Seeing that the poisonous salt in the kettle gradually dissolved, Lin Yuyan said: "Take out the new clothes of this son!" ”

Not long after, Chun Yuqi took a new dress to Lin Yuyan, this is yesterday the scout camp brought some linen cloth, and sewed a linen dress for Lin Yuyan, Lin Yuyan said: "Fold this clothes, and then put them in the new cauldron after three or four layers!" ”

"Whoa!" Chun Yuqi decided to do so.

After Chun Yuqi arranged it, Lin Yuyan poured the boiling poisonous salt water on the linen cloth, originally planning to borrow the linen cloth to filter the poisonous salt water, and filtered it twice in a row, that is, it can be seen that the original turbid poisonous salt water has gradually cleared.

Lin Yuyan stopped the scout battalion soldiers from continuing to filter, and said, "Clean the linen clothes well before getting them!" ”

"Whoa!" The scout battalion soldier wanted to agree directly, but he suddenly found that there was not much clean water left to bring by his side, and if it was used to clean linen clothes, there might be no water source tonight, and he just told General Huang Lie about it, but the latter knocked on the shoulder fiercely and said: "It's just a little bit of water, or thirst and death, if you can refine edible salt, let you drink water every day!" ”

This soldier suddenly realized, and hurriedly cleaned it carefully according to Lin Yuyan's intentions, and then filtered the slightly turbid salt water again.

In the end, Lin Yuyan also looked at the burning bonfire, and also took out some black charcoal, then wrapped it in some linen cloth, and handed it to the soldier who was carefully filtering the salt water: "Use this!" ”

The soldier questioned: "Joining the army, it is already very clear, and if you add black charcoal, won't it become black, how can it work!" ”

"It's not going to get black!" Lin Yuyan said, and then passed this thing to the hands of this soldier: "The reason why the poisonous salt water is turbid is that there are some impurities in the poisonous salt, and there may be some toxicity among these impurities, but most of the toxicity is colorless and tasteless. ”

"Oh...... Here! The pawn hurriedly answered, looking at the linen cloth wrapped in black charcoal in his hand, the pawn also decided to filter it a few more times.

Another half an hour passed, the sky was already completely dark, and there were actually some wolf howls sounding around, for Jing Yi and these guards, it may be a little rigorous, but for Huang Lie and other scout battalion soldiers, the wolf howls are not enough to worry about, one of them has never seen a wolf, after all, the Qinling Mountains are hundreds of miles long, and the wolves in it may add up to more than the people of Great Qin, the old Qin people who live around Wuguan, that one has never grown up in the sound of wolf howls, and there are many people who killed jackals with their own hands!

The scout camp guards have filtered the salt water dozens of times, and the poisonous salt water, which was originally turbid and yellowish-brown, is already extremely clear, if it looks like it on weekdays, it must be no different from pure mountain spring water, and it has been steamed for nearly half an hour, and the cauldron is constantly steaming hot in this cold weather in early spring.

Half an hour of steaming has completely boiled the brine water...... The rest is table salt.

Therefore, when it was time to lift the lid of the cauldron, Huang Lie and the other scout camp soldiers all held their breath and looked inside the cauldron.

Under the hazy night, I saw that the inside of the kettle was white, and when I looked at it by the firelight, it was milky white!

"White salt!" Huang Lie shook his hand excitedly, looked at the milky white salt in the kettle, and said in an excited tone: "The salt is not yellow-brown, but white, it must be non-toxic, this kind of salt can be compared with the sea salt of Qi country!" ”

Haiyan ...... of Qi

Everyone looked at each other, and the salt that was so good that it was not something they could touch!